diff --git a/.github/workflows/basemap-data-hires.yml b/.github/workflows/basemap-data-hires.yml
deleted file mode 100644
index a33ddb149..000000000
--- a/.github/workflows/basemap-data-hires.yml
+++ /dev/null
@@ -1,137 +0,0 @@
-name: basemap-data-hires
-
-env:
-  PKGDIR: "packages/basemap_data_hires"
-  PIP_DEFAULT_TIMEOUT: 10
-  PIP_DISABLE_PIP_VERSION_CHECK: 1
-  PIP_PREFER_BINARY: 1
-  PIP_RETRIES: 0
-  PYTHONUNBUFFERED: "1"
-  PYTHONWARNINGS: "ignore:DEPRECATION"
-
-on:
-  push:
-    paths:
-      - ".github/workflows/basemap-data-hires.yml"
-      - "packages/basemap_data_hires/**"
-  pull_request:
-    paths:
-      - ".github/workflows/basemap-data-hires.yml"
-      - "packages/basemap_data_hires/**"
-  workflow_dispatch:
-
-jobs:
-
-  checkout:
-    runs-on: ubuntu-latest
-    steps:
-      -
-        name: Checkout
-        uses: actions/checkout@v4
-      -
-        name: Upload checkout
-        uses: actions/upload-artifact@v4
-        with:
-          name: checkout
-          path: .
-
-  build:
-    strategy:
-      matrix:
-        python-version:
-          ["2.7"]
-      max-parallel: 1
-    needs: checkout
-    runs-on: ubuntu-latest
-    container: "pylegacy/python:${{ matrix.python-version }}-debian-10"
-    steps:
-      -
-        name: Download checkout
-        uses: actions/download-artifact@v4
-        with:
-          name: checkout
-          path: .
-      -
-        name: Build sdist and wheel
-        run: |
-          cd ${{ env.PKGDIR }}
-          python setup.py sdist
-          pip wheel -w dist --no-deps dist/*.zip
-      -
-        name: Upload build artifacts
-        uses: actions/upload-artifact@v4
-        with:
-          name: artifacts-build
-          path: ${{ env.PKGDIR }}/dist
-
-  test:
-    strategy:
-      matrix:
-        python-version:
-          ["2.6", "2.7", "3.2", "3.3", "3.4", "3.5", "3.6", "3.7", "3.8",
-           "3.9", "3.10", "3.11", "3.12"]
-      max-parallel: 3
-      fail-fast: false
-    needs: build
-    runs-on: ubuntu-latest
-    container: "pylegacy/python:${{ matrix.python-version }}-debian-10"
-    steps:
-      -
-        name: Download checkout
-        uses: actions/download-artifact@v4
-        with:
-          name: checkout
-          path: .
-      -
-        name: Download build artifacts
-        uses: actions/download-artifact@v4
-        with:
-          name: artifacts-build
-          path: ${{ env.PKGDIR }}/dist
-      -
-        name: Install package
-        run: |
-          pip install ${{ env.PKGDIR }}/dist/*.whl
-      -
-        name: Test package
-        run: |
-          python -c "from mpl_toolkits import basemap_data; print(basemap_data)"
-
-  upload:
-    strategy:
-      matrix:
-        python-version:
-          ["2.7"]
-      max-parallel: 1
-    if: startsWith(github.event.ref, 'refs/tags/v')
-    needs: test
-    runs-on: ubuntu-latest
-    container: "pylegacy/python:${{ matrix.python-version }}-debian-10"
-    environment: PyPI
-    steps:
-      -
-        name: Download build artifacts
-        uses: actions/download-artifact@v4
-        with:
-          name: artifacts-build
-          path: ${{ env.PKGDIR }}/dist
-      -
-        name: Install upload requirements
-        run: |
-          pip install twine
-      -
-        name: Check distributables
-        run: |
-          python -m twine check                                               \
-              ${{ env.PKGDIR }}/dist/*.zip                                    \
-              ${{ env.PKGDIR }}/dist/*.whl
-      -
-        name: Upload distributables
-        env:
-          TWINE_USERNAME: __token__
-          TWINE_PASSWORD: "${{ secrets.PYPI_TOKEN }}"
-          TWINE_REPOSITORY_URL: "${{ secrets.PYPI_REPOSITORY_URL }}"
-        run: |
-          python -m twine upload --skip-existing                              \
-              ${{ env.PKGDIR }}/dist/*.zip                                    \
-              ${{ env.PKGDIR }}/dist/*.whl
diff --git a/.github/workflows/basemap-data.yml b/.github/workflows/basemap-data.yml
deleted file mode 100644
index 629213f31..000000000
--- a/.github/workflows/basemap-data.yml
+++ /dev/null
@@ -1,137 +0,0 @@
-name: basemap-data
-
-env:
-  PKGDIR: "packages/basemap_data"
-  PIP_DEFAULT_TIMEOUT: 10
-  PIP_DISABLE_PIP_VERSION_CHECK: 1
-  PIP_PREFER_BINARY: 1
-  PIP_RETRIES: 0
-  PYTHONUNBUFFERED: "1"
-  PYTHONWARNINGS: "ignore:DEPRECATION"
-
-on:
-  push:
-    paths:
-      - ".github/workflows/basemap-data.yml"
-      - "packages/basemap_data/**"
-  pull_request:
-    paths:
-      - ".github/workflows/basemap-data.yml"
-      - "packages/basemap_data/**"
-  workflow_dispatch:
-
-jobs:
-
-  checkout:
-    runs-on: ubuntu-latest
-    steps:
-      -
-        name: Checkout
-        uses: actions/checkout@v4
-      -
-        name: Upload checkout
-        uses: actions/upload-artifact@v4
-        with:
-          name: checkout
-          path: .
-
-  build:
-    strategy:
-      matrix:
-        python-version:
-          ["2.7"]
-      max-parallel: 1
-    needs: checkout
-    runs-on: ubuntu-latest
-    container: "pylegacy/python:${{ matrix.python-version }}-debian-10"
-    steps:
-      -
-        name: Download checkout
-        uses: actions/download-artifact@v4
-        with:
-          name: checkout
-          path: .
-      -
-        name: Build sdist and wheel
-        run: |
-          cd ${{ env.PKGDIR }}
-          python setup.py sdist
-          pip wheel -w dist --no-deps dist/*.zip
-      -
-        name: Upload build artifacts
-        uses: actions/upload-artifact@v4
-        with:
-          name: artifacts-build
-          path: ${{ env.PKGDIR }}/dist
-
-  test:
-    strategy:
-      matrix:
-        python-version:
-          ["2.6", "2.7", "3.2", "3.3", "3.4", "3.5", "3.6", "3.7", "3.8",
-           "3.9", "3.10", "3.11", "3.12"]
-      max-parallel: 3
-      fail-fast: false
-    needs: build
-    runs-on: ubuntu-latest
-    container: "pylegacy/python:${{ matrix.python-version }}-debian-10"
-    steps:
-      -
-        name: Download checkout
-        uses: actions/download-artifact@v4
-        with:
-          name: checkout
-          path: .
-      -
-        name: Download build artifacts
-        uses: actions/download-artifact@v4
-        with:
-          name: artifacts-build
-          path: ${{ env.PKGDIR }}/dist
-      -
-        name: Install package
-        run: |
-          pip install ${{ env.PKGDIR }}/dist/*.whl
-      -
-        name: Test package
-        run: |
-          python -c "from mpl_toolkits import basemap_data; print(basemap_data)"
-
-  upload:
-    strategy:
-      matrix:
-        python-version:
-          ["2.7"]
-      max-parallel: 1
-    if: startsWith(github.event.ref, 'refs/tags/v')
-    needs: test
-    runs-on: ubuntu-latest
-    container: "pylegacy/python:${{ matrix.python-version }}-debian-10"
-    environment: PyPI
-    steps:
-      -
-        name: Download build artifacts
-        uses: actions/download-artifact@v4
-        with:
-          name: artifacts-build
-          path: ${{ env.PKGDIR }}/dist
-      -
-        name: Install upload requirements
-        run: |
-          pip install twine
-      -
-        name: Check distributables
-        run: |
-          python -m twine check                                               \
-              ${{ env.PKGDIR }}/dist/*.zip                                    \
-              ${{ env.PKGDIR }}/dist/*.whl
-      -
-        name: Upload distributables
-        env:
-          TWINE_USERNAME: __token__
-          TWINE_PASSWORD: "${{ secrets.PYPI_TOKEN }}"
-          TWINE_REPOSITORY_URL: "${{ secrets.PYPI_REPOSITORY_URL }}"
-        run: |
-          python -m twine upload --skip-existing                              \
-              ${{ env.PKGDIR }}/dist/*.zip                                    \
-              ${{ env.PKGDIR }}/dist/*.whl
diff --git a/.github/workflows/basemap-for-manylinux.yml b/.github/workflows/basemap-for-manylinux.yml
deleted file mode 100644
index 617568c9a..000000000
--- a/.github/workflows/basemap-for-manylinux.yml
+++ /dev/null
@@ -1,449 +0,0 @@
-name: basemap-for-manylinux
-
-env:
-  PKGDIR: "packages/basemap"
-  PIP_DEFAULT_TIMEOUT: 10
-  PIP_DISABLE_PIP_VERSION_CHECK: 1
-  PIP_PREFER_BINARY: 1
-  PIP_RETRIES: 0
-  PYTHONUNBUFFERED: "1"
-  PYTHONWARNINGS: "ignore:DEPRECATION"
-
-on:
-  push:
-    paths:
-      - ".github/workflows/basemap-for-manylinux.yml"
-      - "packages/basemap/**"
-  pull_request:
-    paths:
-      - ".github/workflows/basemap-for-manylinux.yml"
-      - "packages/basemap/**"
-  workflow_dispatch:
-
-jobs:
-
-  checkout:
-    runs-on: ubuntu-latest
-    steps:
-      -
-        name: Checkout
-        uses: actions/checkout@v1
-      -
-        name: Upload checkout
-        uses: actions/upload-artifact@v1
-        with:
-          name: checkout
-          path: .
-
-  lint:
-    runs-on: ubuntu-latest
-    strategy:
-      matrix:
-        python-version:
-          ["2.7", "3.5", "3.6", "3.7", "3.8", "3.9", "3.10", "3.11", "3.12"]
-      max-parallel: 3
-      fail-fast: false
-    needs: checkout
-    container: "pylegacy/python:${{ matrix.python-version }}-debian-10"
-    steps:
-      -
-        name: Download checkout
-        uses: actions/download-artifact@v1
-        with:
-          name: checkout
-          path: .
-      -
-        name: Install lint requirements
-        run: |
-          cd ${{ env.PKGDIR }}
-          pip install -r requirements-lint.txt
-      -
-        name: Install library requirements
-        run: |
-          cd ${{ env.PKGDIR }}
-          pip install -r requirements.txt
-      -
-        name: Run Flake8
-        run: |
-          cd ${{ env.PKGDIR }}
-          if [ -x "$(command -v flake8)" ]; then
-              flake8 src/mpl_toolkits/basemap/cm.py src/mpl_toolkits/basemap/diagnostic.py src/mpl_toolkits/basemap/proj.py src/mpl_toolkits/basemap/solar.py test;
-          fi
-      -
-        name: Run PyLint
-        run: |
-          cd ${{ env.PKGDIR }}
-          if [ -x "$(command -v pylint)" ]; then
-              pylint src/mpl_toolkits/basemap/cm.py src/mpl_toolkits/basemap/diagnostic.py src/mpl_toolkits/basemap/proj.py src/mpl_toolkits/basemap/solar.py test;
-          fi
-
-  build-geos:
-    strategy:
-      matrix:
-        arch:
-          ["x64", "x86"]
-      max-parallel: 2
-      fail-fast: false
-    needs: lint
-    runs-on: ubuntu-latest
-    container: "pylegacy/${{ matrix.arch }}-python:3.8-debian-4"
-    steps:
-      -
-        name: Download checkout
-        uses: actions/download-artifact@v1
-        with:
-          name: checkout
-          path: .
-      -
-        name: Install CMake 3.6.2
-        run: |
-          apt-get update
-          apt-get install -y libidn11
-          pkgvers=3.6.2
-          pkgname=cmake
-          pkgcode=cmake-${pkgvers}
-          case "${{ matrix.arch }}" in
-              x86)  pkgfile=${pkgcode}-Linux-i386.tar.gz;;
-              *)    pkgfile=${pkgcode}-Linux-x86_64.tar.gz;;
-          esac
-          wget https://github.com/Kitware/CMake/releases/download/v${pkgvers}/${pkgfile} -P /tmp
-          tar -xf /tmp/${pkgfile} --strip-components=1 -C /usr
-          rm -rf /tmp/${pkgfile}
-      -
-        name: Install GCC toolchain
-        run: |
-          apt-get update
-          apt-get install -y gcc g++ make
-      -
-        name: Build GEOS from source
-        run: |
-          cd ${{ env.PKGDIR }}
-          python -c "import utils; utils.GeosLibrary('3.6.5').build('extern', njobs=16)"
-      -
-        name: Upload GEOS artifacts
-        uses: actions/upload-artifact@v1
-        with:
-          name: artifacts-geos-${{ matrix.arch }}
-          path: ${{ env.PKGDIR }}/extern
-
-  build:
-    strategy:
-      matrix:
-        arch:
-          ["x64", "x86"]
-        python-version:
-          ["2.7", "3.5", "3.6", "3.7", "3.8", "3.9", "3.10", "3.11", "3.12"]
-      max-parallel: 3
-      fail-fast: false
-    needs: build-geos
-    runs-on: ubuntu-latest
-    container: "pylegacy/${{ matrix.arch }}-python:${{ matrix.python-version }}-debian-4"
-    steps:
-      -
-        name: Download checkout
-        uses: actions/download-artifact@v1
-        with:
-          name: checkout
-          path: .
-      -
-        name: Download GEOS artifacts
-        uses: actions/download-artifact@v1
-        with:
-          name: artifacts-geos-${{ matrix.arch }}
-          path: ${{ env.PKGDIR }}/extern
-      -
-        name: Install GCC toolchain
-        run: |
-          apt-get update
-          apt-get install -y gcc g++ make
-      -
-        name: Build old numpy from source
-        run: |
-          case "${{ matrix.arch }}" in
-              x64)  arch="x86_64" ;;
-              x86)  arch="i686"   ;;
-          esac
-          case "${{ matrix.python-version }}" in
-              2.6|3.[23])      pkgvers=1.11.3; tag=manylinux1 ;;
-              2.7|3.[456789])  pkgvers=1.16.6; tag=manylinux1 ;;
-              3.10)            pkgvers=1.21.4; tag=manylinux1 ;;
-              3.11)            pkgvers=1.23.3; tag=manylinux_2_17 ;;
-              *)               pkgvers=1.26.1; tag=manylinux_2_28 ;;
-          esac
-          case "${{ matrix.python-version }}" in
-              3.11|3.12)
-                  # Dirty solution to get NumPy headers for Python 3.11 and 3.12.
-                  kwds="--plat=${tag}_${arch}"
-                  pip download --no-deps ${kwds} "numpy==${pkgvers}"
-                  oldpkgfile=$(ls *.whl | head -n1)
-                  newpkgfile=$(echo "${oldpkgfile}" | sed "s/${tag}/linux/")
-                  mv "${oldpkgfile}" "${newpkgfile}"
-                  pip install "${newpkgfile}"
-                  rm "${newpkgfile}"
-              ;;
-              *)
-                  pip install "numpy == ${pkgvers}"
-              ;;
-          esac
-      -
-        name: Build wheel
-        run: |
-          sitepkgdir=$(pip show numpy 2>/dev/null | grep Location: | cut -d' ' -f2)
-          export GEOS_DIR="${GITHUB_WORKSPACE}/${{ env.PKGDIR }}/extern"
-          export NUMPY_INCLUDE_PATH=${sitepkgdir}/numpy/core/include
-          case "${{ matrix.python-version }}" in
-              3.11|3.12)
-                kwds="--no-build-isolation"
-                pip install setuptools wheel "cython >= 0.29, < 3.1"
-              ;;
-          esac
-          cd ${{ env.PKGDIR }}
-          python setup.py sdist
-          pip wheel -w dist --no-deps ${kwds} dist/*.zip
-      -
-        name: Upload build artifacts
-        uses: actions/upload-artifact@v1
-        with:
-          name: artifacts-build-${{ matrix.arch }}-${{ matrix.python-version }}
-          path: ${{ env.PKGDIR }}/dist
-
-  repair:
-    strategy:
-      matrix:
-        arch:
-          ["x64", "x86"]
-        python-version:
-          ["2.7", "3.5", "3.6", "3.7", "3.8", "3.9", "3.10", "3.11", "3.12"]
-      max-parallel: 3
-      fail-fast: false
-    needs: build
-    runs-on: ubuntu-latest
-    container: "pylegacy/${{ matrix.arch }}-python:3.8-debian-10"
-    steps:
-      -
-        name: Download GEOS artifacts
-        uses: actions/download-artifact@v1
-        with:
-          name: artifacts-geos-${{ matrix.arch }}
-          path: ${{ env.PKGDIR }}/extern
-      -
-        name: Download build artifacts
-        uses: actions/download-artifact@v1
-        with:
-          name: artifacts-build-${{ matrix.arch }}-${{ matrix.python-version }}
-          path: ${{ env.PKGDIR }}/dist
-      -
-        name: Install auditwheel
-        run: |
-          apt-get update
-          apt-get install -y unzip
-          pip install patchelf
-          pip install "auditwheel < 4.0"
-      -
-        name: Repair wheel
-        run: |
-          cd ${{ env.PKGDIR }}
-          export LD_LIBRARY_PATH="$(readlink -f extern/lib)"
-          auditwheel repair -w dist dist/*.whl
-      -
-        name: Upload build artifacts
-        uses: actions/upload-artifact@v1
-        with:
-          name: artifacts-build-${{ matrix.arch }}-${{ matrix.python-version }}
-          path: ${{ env.PKGDIR }}/dist
-
-  test:
-    strategy:
-      matrix:
-        arch:
-          ["x64", "x86"]
-        python-version:
-          ["2.7", "3.5", "3.6", "3.7", "3.8", "3.9", "3.10", "3.11", "3.12"]
-        exclude:
-          # Missing precompiled binaries for `numpy`, `matplotlib`,
-          # `pyproj`, `pillow` and `lxml`.
-          - arch: "x86"
-            python-version: "3.12"
-      max-parallel: 3
-      fail-fast: false
-    needs: repair
-    runs-on: ubuntu-latest
-    container: "pylegacy/${{ matrix.arch }}-python:${{ matrix.python-version }}-debian-10"
-    steps:
-      -
-        name: Download checkout
-        uses: actions/download-artifact@v1
-        with:
-          name: checkout
-          path: .
-      -
-        name: Download build artifacts
-        uses: actions/download-artifact@v1
-        with:
-          name: artifacts-build-${{ matrix.arch }}-${{ matrix.python-version }}
-          path: ${{ env.PKGDIR }}/dist
-      -
-        name: Install numpy from source
-        run: |
-          apt-get update
-          apt-get install -y gcc g++ make
-          pip install "numpy < 1.24"
-        if: matrix.arch == 'x86' && (matrix.python-version >= '3.8' || matrix.python-version >= '3.10')
-      -
-        name: Install test requirements
-        run: |
-          cd ${{ env.PKGDIR }}
-          pip install -r requirements-test.txt
-      -
-        name: Install package (full)
-        run: |
-          whlpath=$(ls ${{ env.PKGDIR }}/dist/*-manylinux1*.whl | head -n1)
-          pip install "${whlpath}[owslib,pillow]"
-      -
-        name: Test package
-        run: |
-          cd ${{ env.PKGDIR }}
-          export COVERAGE_FILE=.coverage.${{ matrix.python-version }}
-          python -m pytest                                                    \
-              --cov="mpl_toolkits.basemap" --cov-report=term                  \
-              --ignore=dist --ignore=build
-      -
-        name: Upload test artifacts
-        uses: actions/upload-artifact@v1
-        with:
-          name: artifacts-test
-          path: ${{ env.PKGDIR }}/.coverage.${{ matrix.python-version }}
-
-  coverage:
-    needs: test
-    runs-on: ubuntu-latest
-    container: "pylegacy/python:3.8-debian-10"
-    steps:
-      -
-        name: Checkout
-        uses: actions/checkout@v1
-      -
-        name: Download test artifacts
-        uses: actions/download-artifact@v1
-        with:
-          name: artifacts-test
-          path: ${{ env.PKGDIR }}
-      -
-        name: Install test requirements
-        run: |
-          cd ${{ env.PKGDIR }}
-          pip install -r requirements-test.txt
-      -
-        name: Compute combined coverage
-        run: |
-          cd ${{ env.PKGDIR }}
-          coverage combine
-          coverage html
-          coverage report
-      -
-        name: Upload coverage artifacts
-        uses: actions/upload-artifact@v1
-        with:
-          name: artifacts-coverage
-          path: ${{ env.PKGDIR }}/htmlcov
-
-  docs:
-    needs: test
-    runs-on: ubuntu-latest
-    container: "pylegacy/python:3.8-debian-10"
-    steps:
-      -
-        name: Download checkout
-        uses: actions/download-artifact@v1
-        with:
-          name: checkout
-          path: .
-      -
-        name: Install doc requirements
-        run: |
-          cd ${{ env.PKGDIR }}
-          pip install -r requirements-doc.txt
-      -
-        name: Download build artifacts
-        uses: actions/download-artifact@v1
-        with:
-          name: artifacts-build-x64-3.8
-          path: ${{ env.PKGDIR }}/dist
-      -
-        name: Install package
-        run: |
-          cd ${{ env.PKGDIR }}
-          pip install dist/*-manylinux1*.whl
-      -
-        name: Run sphinx
-        run: |
-          cd ${{ env.PKGDIR }}
-          python -m sphinx doc/source public
-      -
-        name: Upload docs artifacts
-        uses: actions/upload-artifact@v1
-        with:
-          name: artifacts-docs
-          path: ${{ env.PKGDIR }}/public
-      -
-        name: Upload github-pages artifact
-        uses: actions/upload-pages-artifact@v3
-        with:
-          name: github-pages
-          path: ${{ env.PKGDIR }}/public
-
-  pages:
-    if: startsWith(github.event.ref, 'refs/tags/v')
-    needs: docs
-    runs-on: ubuntu-latest
-    environment:
-      name: github-pages
-      url: ${{ steps.deployment.outputs.page_url }}
-    permissions:
-      pages: write
-      id-token: write
-    steps:
-      - name: Deploy github-pages
-        uses: actions/deploy-pages@v3
-        id: deployment
-
-  upload:
-    strategy:
-      matrix:
-        arch:
-          ["x64", "x86"]
-        python-version:
-          ["2.7", "3.5", "3.6", "3.7", "3.8", "3.9", "3.10", "3.11", "3.12"]
-      max-parallel: 1
-    if: startsWith(github.event.ref, 'refs/tags/v')
-    needs: test
-    runs-on: ubuntu-latest
-    container: "pylegacy/${{ matrix.arch }}-python:${{ matrix.python-version }}-debian-10"
-    environment: PyPI
-    steps:
-      -
-        name: Download build artifacts
-        uses: actions/download-artifact@v1
-        with:
-          name: artifacts-build-${{ matrix.arch }}-${{ matrix.python-version }}
-          path: ${{ env.PKGDIR }}/dist
-      -
-        name: Install upload requirements
-        run: |
-          pip install twine
-      -
-        name: Check distributables
-        run: |
-          python -m twine check                                               \
-              ${{ env.PKGDIR }}/dist/*.zip                                    \
-              ${{ env.PKGDIR }}/dist/*-manylinux1*.whl
-      -
-        name: Upload distributables
-        env:
-          TWINE_USERNAME: __token__
-          TWINE_PASSWORD: "${{ secrets.PYPI_TOKEN }}"
-          TWINE_REPOSITORY_URL: "${{ secrets.PYPI_REPOSITORY_URL }}"
-        run: |
-          python -m twine upload --skip-existing                              \
-              ${{ env.PKGDIR }}/dist/*.zip                                    \
-              ${{ env.PKGDIR }}/dist/*-manylinux1*.whl
diff --git a/.github/workflows/basemap-for-windows.yml b/.github/workflows/basemap-for-windows.yml
deleted file mode 100644
index 92eb337fc..000000000
--- a/.github/workflows/basemap-for-windows.yml
+++ /dev/null
@@ -1,326 +0,0 @@
-name: basemap-for-windows
-
-env:
-  PKGDIR: "packages/basemap"
-  PIP_DEFAULT_TIMEOUT: 10
-  PIP_DISABLE_PIP_VERSION_CHECK: 1
-  PIP_PREFER_BINARY: 1
-  PIP_RETRIES: 0
-  PYTHONUNBUFFERED: "1"
-  PYTHONWARNINGS: "ignore:DEPRECATION"
-
-on:
-  push:
-    paths:
-      - ".github/workflows/basemap-for-windows.yml"
-      - "!packages/basemap/doc/**"
-      - "packages/basemap/**"
-  pull_request:
-    paths:
-      - ".github/workflows/basemap-for-windows.yml"
-      - "!packages/basemap/doc/**"
-      - "packages/basemap/**"
-  workflow_dispatch:
-
-jobs:
-
-  checkout:
-    runs-on: windows-2019
-    steps:
-      -
-        name: Checkout
-        uses: actions/checkout@v4
-      -
-        name: Upload checkout
-        uses: actions/upload-artifact@v4
-        with:
-          name: checkout
-          path: .
-
-  lint:
-    runs-on: windows-2019
-    strategy:
-      matrix:
-        python-version:
-          ["2.7", "3.5", "3.6", "3.7", "3.8", "3.9", "3.10", "3.11", "3.12"]
-      max-parallel: 3
-      fail-fast: false
-    needs: checkout
-    steps:
-      -
-        name: Download checkout
-        uses: actions/download-artifact@v4
-        with:
-          name: checkout
-          path: .
-      -
-        name: Set Python
-        uses: pylegacy/actions/setup-pyenv-win@v2
-        with:
-          architecture: ${{ matrix.arch }}
-          python-version: ${{ matrix.python-version }}
-      -
-        name: Set Python base packages
-        run: |
-          python -m pip install --upgrade pip setuptools wheel
-      -
-        name: Install lint requirements
-        run: |
-          cd ${{ env.PKGDIR }}
-          python -m pip install -r requirements-lint.txt
-      -
-        name: Install library requirements
-        run: |
-          cd ${{ env.PKGDIR }}
-          python -m pip install -r requirements.txt
-      -
-        name: Run Flake8
-        run: |
-          cd ${{ env.PKGDIR }}
-          if (Get-Command flake8 -errorAction SilentlyContinue)
-          {
-              flake8 src/mpl_toolkits/basemap/cm.py src/mpl_toolkits/basemap/diagnostic.py src/mpl_toolkits/basemap/proj.py src/mpl_toolkits/basemap/solar.py test;
-          }
-      -
-        name: Run PyLint
-        run: |
-          cd ${{ env.PKGDIR }}
-          if (Get-Command pylint -errorAction SilentlyContinue)
-          {
-              pylint src/mpl_toolkits/basemap/cm.py src/mpl_toolkits/basemap/diagnostic.py src/mpl_toolkits/basemap/proj.py src/mpl_toolkits/basemap/solar.py test;
-          }
-
-  build-geos:
-    strategy:
-      matrix:
-        arch:
-          ["x64", "x86"]
-        msvc-toolset:
-          ["9.0", "14.0"]
-        include:
-          - msvc-toolset: "9.0"
-            python-version: "2.7"
-          - msvc-toolset: "14.0"
-            python-version: "3.5"
-      max-parallel: 4
-      fail-fast: false
-    needs: lint
-    runs-on: windows-2019
-    steps:
-      -
-        name: Download checkout
-        uses: actions/download-artifact@v4
-        with:
-          name: checkout
-          path: .
-      -
-        name: Set MSVC toolset
-        uses: pylegacy/actions/setup-msvc@v2
-        with:
-          arch: ${{ matrix.arch }}
-          toolset: ${{ matrix.msvc-toolset }}
-      -
-        name: Set CMake
-        uses: jwlawson/actions-setup-cmake@v2.0
-        with:
-          cmake-version: "3.24.2"
-      -
-        name: Set Python
-        uses: pylegacy/actions/setup-pyenv-win@v2
-        with:
-          architecture: ${{ matrix.arch }}
-          python-version: ${{ matrix.python-version }}
-      -
-        name: Build GEOS from source
-        run: |
-          cd ${{ env.PKGDIR }}
-          python -c "import utils; utils.GeosLibrary('3.6.5').build('extern', toolset='${{ matrix.msvc-toolset }}', njobs=16)"
-      -
-        name: Upload GEOS artifacts
-        uses: actions/upload-artifact@v4
-        with:
-          name: artifacts-geos-${{ matrix.arch }}-msvc${{ matrix.msvc-toolset }}
-          path: ${{ env.PKGDIR }}/extern
-
-  build:
-    strategy:
-      matrix:
-        arch:
-          ["x64", "x86"]
-        python-version:
-          ["2.7", "3.5", "3.6", "3.7", "3.8", "3.9", "3.10", "3.11", "3.12"]
-      max-parallel: 3
-      fail-fast: false
-    needs: build-geos
-    runs-on: windows-2019
-    steps:
-      -
-        name: Download checkout
-        uses: actions/download-artifact@v4
-        with:
-          name: checkout
-          path: .
-      -
-        name: Set Python
-        uses: pylegacy/actions/setup-pyenv-win@v2
-        with:
-          architecture: ${{ matrix.arch }}
-          python-version: ${{ matrix.python-version }}
-      -
-        name: Set Python base packages
-        run: |
-          python -m pip install --upgrade pip setuptools wheel
-      -
-        name: Build old numpy from source
-        run: |
-          Switch -regex ("${{ matrix.python-version }}") {
-              "^2\.6|3\.[123]$"     { Set-Variable -Name "pkgvers" -Value "1.11.3" }
-              "^2\.7|3\.[456789]$"  { Set-Variable -Name "pkgvers" -Value "1.16.6" }
-              "^3\.10$"             { Set-Variable -Name "pkgvers" -Value "1.21.4" }
-              "^3\.11$"             { Set-Variable -Name "pkgvers" -Value "1.23.3" }
-              default               { Set-Variable -Name "pkgvers" -Value "1.26.1" }
-          }
-          $env:SETUPTOOLS_USE_DISTUTILS = "stdlib"
-          python -m pip install "numpy == ${pkgvers}"
-      -
-        name: Set MSVC toolset version
-        run: |
-          if ("${{ matrix.python-version }}" -eq "2.7") {
-              echo "msvc-toolset=9.0" >> $env:GITHUB_ENV
-          } else {
-              echo "msvc-toolset=14.0" >> $env:GITHUB_ENV
-          }
-      -
-        name: Set MSVC toolset
-        uses: pylegacy/actions/setup-msvc@v2
-        with:
-          arch: ${{ matrix.arch }}
-          toolset: ${{ env.msvc-toolset }}
-      -
-        name: Download GEOS artifacts
-        uses: actions/download-artifact@v4
-        with:
-          name: artifacts-geos-${{ matrix.arch }}-msvc${{ env.msvc-toolset }}
-          path: ${{ env.PKGDIR }}/extern
-      -
-        name: Build sdist and wheel
-        run: |
-          cd ${{ env.PKGDIR }}
-          $env:GEOS_DIR = "$env:GITHUB_WORKSPACE/${{ env.PKGDIR }}/extern"
-          python -m pip install -r requirements-setup.txt
-          python setup.py sdist
-          python -m pip wheel -w dist --no-deps (Get-Item dist/*.zip)
-      -
-        name: Upload build artifacts
-        uses: actions/upload-artifact@v4
-        with:
-          name: artifacts-build-${{ matrix.arch }}-${{ matrix.python-version }}
-          path: ${{ env.PKGDIR }}/dist
-
-  test:
-    strategy:
-      matrix:
-        arch:
-          ["x64", "x86"]
-        python-version:
-          ["2.7", "3.5", "3.6", "3.7", "3.8", "3.9", "3.10", "3.11", "3.12"]
-        exclude:
-          # Missing precompiled binaries for `numpy` and `matplotlib`.
-          - arch: "x86"
-            python-version: "3.12"
-      max-parallel: 3
-      fail-fast: false
-    needs: build
-    runs-on: windows-2019
-    steps:
-      -
-        name: Download checkout
-        uses: actions/download-artifact@v4
-        with:
-          name: checkout
-          path: .
-      -
-        name: Download build artifacts
-        uses: actions/download-artifact@v4
-        with:
-          name: artifacts-build-${{ matrix.arch }}-${{ matrix.python-version }}
-          path: ${{ env.PKGDIR }}/dist
-      -
-        name: Set Python
-        uses: pylegacy/actions/setup-pyenv-win@v2
-        with:
-          architecture: ${{ matrix.arch }}
-          python-version: ${{ matrix.python-version }}
-      -
-        name: Set Python base packages
-        run: |
-          python -m pip install --upgrade pip setuptools wheel
-      -
-        name: Install test requirements
-        run: |
-          cd ${{ env.PKGDIR }}
-          pip install -r requirements-test.txt
-      -
-        name: Install package (full)
-        run: |
-          $whlpath = "$(Get-Item ${{ env.PKGDIR }}/dist/*-win*.whl)"
-          python -m pip install "${whlpath}[owslib,pillow]"
-      -
-        name: Test package
-        run: |
-          cd ${{ env.PKGDIR }}
-          $env:COVERAGE_FILE = ".coverage.${{ matrix.arch }}.${{ matrix.python-version }}"
-          python -m pytest                                                    `
-              --cov="mpl_toolkits.basemap" --cov-report=term                  `
-              --ignore=dist --ignore=build
-      -
-        name: Upload test artifacts
-        uses: actions/upload-artifact@v4
-        with:
-          name: artifacts-test-${{ matrix.arch }}-${{ matrix.python-version }}
-          path: ${{ env.PKGDIR }}/.coverage.${{ matrix.arch }}.${{ matrix.python-version }}
-
-  upload:
-    strategy:
-      matrix:
-        arch:
-          ["x64", "x86"]
-        python-version:
-          ["2.7", "3.5", "3.6", "3.7", "3.8", "3.9", "3.10", "3.11", "3.12"]
-      max-parallel: 1
-    if: startsWith(github.event.ref, 'refs/tags/v')
-    needs: test
-    runs-on: windows-2019
-    environment: PyPI
-    steps:
-      -
-        name: Set Python
-        uses: pylegacy/actions/setup-pyenv-win@v2
-        with:
-          architecture: ${{ matrix.arch }}
-          python-version: ${{ matrix.python-version }}
-      -
-        name: Download build artifacts
-        uses: actions/download-artifact@v4
-        with:
-          name: artifacts-build-${{ matrix.arch }}-${{ matrix.python-version }}
-          path: ${{ env.PKGDIR }}/dist
-      -
-        name: Install upload requirements
-        run: |
-          python -m pip install twine
-      -
-        name: Check distributables
-        run: |
-          python -m twine check                                               `
-              ${{ env.PKGDIR }}/dist/*.zip                                    `
-              ${{ env.PKGDIR }}/dist/*.whl
-      -
-        name: Upload distributables
-        env:
-          TWINE_USERNAME: __token__
-          TWINE_PASSWORD: "${{ secrets.PYPI_TOKEN }}"
-          TWINE_REPOSITORY_URL: "${{ secrets.PYPI_REPOSITORY_URL }}"
-        run: |
-          python -m twine upload --skip-existing                              `
-              ${{ env.PKGDIR }}/dist/*.whl
diff --git a/.github/workflows/build-data.yml b/.github/workflows/build-data.yml
new file mode 100644
index 000000000..3f24c176c
--- /dev/null
+++ b/.github/workflows/build-data.yml
@@ -0,0 +1,86 @@
+name: Build Data Packages
+
+env:
+  PYTHONUNBUFFERED: "1"
+  PYTHONWARNINGS: "ignore:DEPRECATION"
+
+on:
+  push:
+    paths:
+      - "packages/basemap_data/**"
+      - "packages/basemap_data_hires/**"
+  pull_request:
+    paths:
+      - "packages/basemap_data/**"
+      - "packages/basemap_data_hires/**"
+  workflow_dispatch:
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        package: [basemap_data, basemap_data_hires]
+
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Set up Python
+        uses: actions/setup-python@v4
+        with:
+          python-version: "3.9"
+
+      - name: Build package
+        run: |
+          cd packages/${{ matrix.package }}
+          pip install build
+          python -m build
+
+      - uses: actions/upload-artifact@v4
+        with:
+          name: dist-${{ matrix.package }}
+          path: packages/${{ matrix.package }}/dist/*
+
+  upload_testpypi:
+    needs: [build]
+    runs-on: ubuntu-20.04
+    if: github.event_name == 'push' && startsWith(github.ref, 'refs/tags/v')
+    strategy:
+      matrix:
+        package: [basemap_data, basemap_data_hires]
+    environment:
+      name: TestPyPI
+      url: https://test.pypi.org/p/${{ matrix.package }}
+    permissions:
+      id-token: write
+    steps:
+      - uses: actions/download-artifact@v4
+        with:
+          name: dist-${{ matrix.package }}
+          path: dist
+
+      - name: Upload to TestPyPI
+        uses: pypa/gh-action-pypi-publish@release/v1
+        with:
+          repository-url: https://test.pypi.org/legacy/
+
+  upload_pypi:
+    needs: [build, upload_testpypi]
+    runs-on: ubuntu-latest
+    if: github.event_name == 'push' && startsWith(github.ref, 'refs/tags/v')
+    strategy:
+      matrix:
+        package: [basemap_data, basemap_data_hires]
+    environment:
+      name: PyPI
+      url: https://pypi.org/p/${{ matrix.package }}
+    permissions:
+      id-token: write
+    steps:
+      - uses: actions/download-artifact@v4
+        with:
+          name: dist-${{ matrix.package }}
+          path: dist
+
+      - name: Upload to PyPI
+        uses: pypa/gh-action-pypi-publish@release/v1
diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
new file mode 100644
index 000000000..522923c9a
--- /dev/null
+++ b/.github/workflows/build.yml
@@ -0,0 +1,131 @@
+name: Build and Test
+
+env:
+  PKGDIR: "packages/basemap"
+  CIBW_BUILD_VERBOSITY: 1
+  PYTHONUNBUFFERED: "1"
+  PYTHONWARNINGS: "ignore:DEPRECATION"
+  GEO_VERSION: "3.6.5"
+
+on:
+  push:
+    paths:
+      - ".github/workflows/**"
+      - "packages/basemap/**"
+  pull_request:
+    paths:
+      - ".github/workflows/**"
+      - "packages/basemap/**"
+  workflow_dispatch:
+
+jobs:
+  build_wheels:
+    name: Build wheels on ${{ matrix.os }}
+    runs-on: ${{ matrix.os }}
+    strategy:
+      matrix:
+        os: [ubuntu-latest, windows-2019, macos-11]
+
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Set up Python
+        uses: actions/setup-python@v4
+        with:
+          python-version: "3.9"
+
+      - name: Setup CMake
+        uses: jwlawson/actions-setup-cmake@v1.13
+        with:
+          cmake-version: "3.16.x"
+
+      - name: Setup C++ toolchain (Linux)
+        if: runner.os == 'Linux'
+        run: |
+          sudo apt-get update
+          sudo apt-get install -y build-essential
+
+      - name: Setup Visual Studio Developer Command Prompt
+        if: runner.os == 'Windows'
+        uses: ilammy/msvc-dev-cmd@v1
+
+      - name: Setup C++ toolchain (macOS)
+        if: runner.os == 'macOS'
+        run: |
+          xcode-select --install || true
+
+      - name: Install cibuildwheel
+        run: python -m pip install cibuildwheel==2.16.2
+
+      - name: Set GEO src directory
+        shell: bash
+        run: |
+          if [ "$RUNNER_OS" == "Windows" ]; then
+            echo "GEO_DIR=D:/a/basemap/basemap/geo" >> $GITHUB_ENV
+          else
+            echo "GEO_DIR=/project/geo" >> $GITHUB_ENV
+          fi
+
+      - name: Build wheels
+        env:
+          CIBW_BUILD: "cp{39,310,311,312}-{manylinux_x86_64,win_amd64,macosx_x86_64}"
+          CIBW_SKIP: "*-manylinux_i686 *-musllinux* pp*"
+          CIBW_BEFORE_BUILD: >
+            python -c "import utils; utils.GeosLibrary('${{ env.GEO_VERSION }}').build('${{ env.GEO_DIR}}', njobs=16)"
+
+          CIBW_ENVIRONMENT_WINDOWS: |
+            GEOS_DIR=${{ env.GEO_DIR }}
+            INCLUDE=${{ env.GEO_DIR }}/include;%%INCLUDE%%
+            LIB=${{ env.GEO_DIR }}/lib;%%LIB%%
+            PATH=${{ env.GEO_DIR }}/bin;%%PATH%%
+
+          CIBW_ENVIRONMENT_LINUX: |
+            GEOS_DIR=${{ env.GEO_DIR }}
+            CFLAGS="-I${{ env.GEO_DIR }}/include"
+            LDFLAGS="-L${{ env.GEO_DIR }}/lib"
+            LD_LIBRARY_PATH="${{ env.GEO_DIR }}/lib:$LD_LIBRARY_PATH"
+
+          CIBW_ENVIRONMENT_MACOS: |
+            GEOS_DIR=${{ env.GEO_DIR }}
+            CFLAGS=-I${{ env.GEO_DIR }}/include
+            LDFLAGS=-L${{ env.GEO_DIR }}/lib
+            DYLD_LIBRARY_PATH=${{ env.GEO_DIR }}/lib:$DYLD_LIBRARY_PATH
+
+          CIBW_REPAIR_WHEEL_COMMAND_LINUX: >-
+            mkdir -p {dest_dir}/.libs &&
+            cp ${{ env.GEO_DIR }}/lib/libgeos*.so* {dest_dir}/.libs/ &&
+            auditwheel repair
+            --lib-sdir .libs
+            -w {dest_dir}
+            {wheel}
+
+          CIBW_REPAIR_WHEEL_COMMAND_WINDOWS: >-
+            mkdir "{dest_dir}\libs" &&
+            copy "%GEO_DIR%\bin\geos*.dll" "{dest_dir}\libs\" &&
+            copy "{wheel}" "{dest_dir}\" &&
+            dir /s /b "{dest_dir}\libs"
+
+          CIBW_REPAIR_WHEEL_COMMAND_MACOS: >-
+            mkdir -p {dest_dir}/.libs &&
+            cp ${{ env.GEO_DIR }}/lib/libgeos*.dylib {dest_dir}/.libs/ &&
+            delocate-wheel -w {dest_dir} -v {wheel}
+
+          CIBW_TEST_COMMAND_WINDOWS: >-
+            pip install pytest pytest-cov &&
+            pip install {wheel} &&
+            echo "Project path: {project}" &&
+            python -m pytest "{project}\test" --cov="mpl_toolkits.basemap" --cov-report=term --ignore=dist --ignore=build
+
+          CIBW_TEST_COMMAND: >-
+            cd {project} &&
+            pip install pytest pytest-cov &&
+            python -m pytest --cov="mpl_toolkits.basemap" --cov-report=term --ignore=dist --ignore=build
+
+        run: |
+          cd ${{ env.PKGDIR }}
+          python -m cibuildwheel --output-dir wheelhouse
+
+      - uses: actions/upload-artifact@v4
+        with:
+          name: wheels-${{ matrix.os }}
+          path: ${{ env.PKGDIR }}/wheelhouse/*.whl
diff --git a/packages/basemap/build.py b/packages/basemap/build.py
new file mode 100644
index 000000000..d89af428c
--- /dev/null
+++ b/packages/basemap/build.py
@@ -0,0 +1,9 @@
+def get_requirements(filename):
+    """Read requirements from file."""
+    with open(filename) as f:
+        return [line.strip() for line in f if line.strip() and not line.startswith('#')]
+
+def get_package_data():
+    return {
+        "mpl_toolkits.basemap": ["data/*"]
+    }
\ No newline at end of file
diff --git a/packages/basemap/pyproject.toml b/packages/basemap/pyproject.toml
index 6a50e2c78..d6881fce6 100644
--- a/packages/basemap/pyproject.toml
+++ b/packages/basemap/pyproject.toml
@@ -1,15 +1,92 @@
 [build-system]
 requires = [
-    'setuptools',
-    'wheel',
-    'numpy == 1.26.1; python_version >= "3.12"',
-    'numpy == 1.23.3; python_version == "3.11"',
-    'numpy == 1.21.4; python_version == "3.10"',
-    'numpy == 1.21.4; sys_platform == "darwin" and (python_version >= "3.7" and python_version <= "3.9")',
-    'numpy == 1.16.6; sys_platform != "darwin" and (python_version >= "3.7" and python_version <= "3.9")',
-    'numpy == 1.16.6; python_version == "2.7" or (python_version >= "3.4" and python_version <= "3.6")',
-    'numpy == 1.11.3; python_version == "2.6" or (python_version >= "3.2" and python_version <= "3.3")',
-    'cython >= 0.29, < 3.1; python_version >= "3.3" or python_version < "3.0"',
-    'cython >= 0.26, < 0.27; python_version == "3.2"'
+    "setuptools>=42",
+    "wheel",
+    "numpy==2.0.0; python_version >= '3.9'",
+    "cython>=0.29.21,<3.1"
 ]
 build-backend = "setuptools.build_meta"
+
+[project]
+name = "basemap"
+dynamic = ["version", "dependencies", "optional-dependencies"]
+description = "Plot data on map projections with matplotlib"
+readme = "README.md"
+requires-python = ">=3.9"
+license = {text = "MIT"}
+authors = [
+    {name = "Jeff Whitaker", email = "jeffrey.s.whitaker@noaa.gov"}
+]
+maintainers = [
+    {name = "Víctor Molina García", email = "molinav@users.noreply.github.com"}
+]
+keywords = ["GIS", "maps", "plots"]
+classifiers = [
+    "Development Status :: 5 - Production/Stable",
+    "Intended Audience :: Education",
+    "Intended Audience :: Science/Research",
+    "License :: OSI Approved :: MIT License",
+    "Operating System :: OS Independent",
+    "Programming Language :: Python :: 3",
+    "Programming Language :: Python :: 3.9",
+    "Programming Language :: Python :: 3.10",
+    "Programming Language :: Python :: 3.11",
+    "Programming Language :: Python :: 3.12",
+    "Topic :: Scientific/Engineering :: Visualization",
+    "Topic :: Software Development :: Libraries :: Python Modules"
+]
+
+[project.urls]
+Homepage = "https://matplotlib.org/basemap"
+Documentation = "https://matplotlib.org/basemap/"
+Repository = "https://github.com/matplotlib/basemap"
+"Bug Tracker" = "https://github.com/matplotlib/basemap/issues"
+
+[tool.setuptools]
+packages = ["mpl_toolkits.basemap"]
+namespace-packages = ["mpl_toolkits"]
+package-dir = {"" = "src"}
+license-files = ["LICENSE", "LICENSE.geos"]
+
+[tool.setuptools.package-data]
+"mpl_toolkits.basemap" = ["data/*"]
+
+[tool.setuptools.exclude-package-data]
+"*" = ["*.pyc", "**/__pycache__/*"]
+
+[tool.setuptools.dynamic]
+version = {attr = "mpl_toolkits.basemap.__version__"}
+dependencies = {file = "requirements.txt"}
+
+[tool.setuptools.dynamic.optional-dependencies]
+doc = {file = ["requirements-doc.txt"]}
+lint = {file = ["requirements-lint.txt"]}
+test = {file = ["requirements-test.txt"]}
+owslib = {file = ["requirements-owslib.txt"]}
+pillow = {file = ["requirements-pillow.txt"]}
+
+[tool.pytest.ini_options]
+filterwarnings = [
+    "error",
+    "ignore:Using or importing the ABCs from 'collections' instead of from 'collections.abc' is deprecated:DeprecationWarning:unittest2.compatibility:143",
+    "ignore:datetime.datetime.utcfromtimestamp() is deprecated:DeprecationWarning:dateutil.tz.tz:37"
+]
+
+[tool.coverage.paths]
+source = [
+    "src",
+    "/opt/pyenv/versions/**/site-packages"
+]
+
+[tool.coverage.report]
+exclude_lines = [
+    "pragma: no cover",
+    "def __repr__",
+    "def __str__",
+    "raise NotImplementedError",
+    "if __name__ == .__main__.:"]
+
+
+
+[tool.flake8]
+ignore = ["E301", "E306", "E402", "E501", "E731", "F401", "F403", "W503", "W504"]
diff --git a/packages/basemap/setup.cfg b/packages/basemap/setup.cfg
deleted file mode 100644
index 58e39b69a..000000000
--- a/packages/basemap/setup.cfg
+++ /dev/null
@@ -1,42 +0,0 @@
-[metadata]
-license_files =
-    LICENSE
-    LICENSE.geos
-
-[sdist]
-formats = zip
-
-[flake8]
-ignore =
-    E301,E306,E402,E501,E731,F401,F403,W503,W504
-# E301: expected-blank-line-missing
-# E306: no-blank-line-before-nested-def
-# E402: module-import-not-at-top-file
-# E501: line-too-long
-# E731: used-lambda
-# F401: unused-import
-# F403: wildcard-import
-# W503: line-break-before-binary-operator
-# W504: line-break-after-binary-operator
-
-[tool:pytest]
-filterwarnings =
-    error
-    # To be removed when replacing `unittest2`.
-    ignore:Using or importing the ABCs from 'collections' instead of from 'collections.abc' is deprecated:DeprecationWarning:unittest2.compatibility:143
-    # To be removed with `dateutil` release after 2.8.2.
-    # See: https://github.com/dateutil/dateutil/issues/1314
-    ignore:datetime.datetime.utcfromtimestamp\(\) is deprecated:DeprecationWarning:dateutil.tz.tz:37
-
-[coverage:paths]
-source =
-    src
-    /opt/pyenv/versions/**/site-packages
-
-[coverage:report]
-exclude_lines =
-    pragma: no cover
-    def __repr__
-    def __str__
-    raise NotImplementedError
-    if __name__ == .__main__.:
diff --git a/packages/basemap/setup.py b/packages/basemap/setup.py
index 4c98a8776..c6a70f32f 100644
--- a/packages/basemap/setup.py
+++ b/packages/basemap/setup.py
@@ -1,272 +1,75 @@
 #! /usr/bin/env python
 # -*- coding: utf-8 -*-
 # flake8: noqa: E122
-"""basemap -- Plot data on map projections with matplotlib."""
-
-import io
-import os
-import re
-import sys
-import glob
-import warnings
-from setuptools import setup
-from setuptools import find_packages
-from setuptools.command.sdist import sdist
-from setuptools.extension import Extension
-
-try:
-    import Cython
-    cython_major_version = int(Cython.__version__.split(".", 1)[0])
-except ImportError:
-    cython_major_version = 0
-
-
-def get_content(name, splitlines=False):
-    """Return the file contents with project root as root folder."""
-
-    here = os.path.abspath(os.path.dirname(__file__))
-    path = os.path.join(here, name)
-    with io.open(path, "r", encoding="utf-8") as fd:
-        content = fd.read()
-    if splitlines:
-        content = [row for row in content.splitlines() if row]
-    return content
-
-
-def get_version(pkgname):
-    """Return package version without importing the file."""
-
-    here = os.path.abspath(os.path.dirname(__file__))
-    path = os.path.join(*[here, "src"] + pkgname.split(".") + ["__init__.py"])
-    with io.open(path, "r", encoding="utf-8") as fd:
-        pattern = r"""\n__version__[ ]*=[ ]*["']([^"]+)["']"""
-        return re.search(pattern, fd.read()).group(1)
+import os, sys, glob, warnings
+import numpy as np
+from setuptools import setup, Extension
 
 
 def get_geos_install_prefix():
     """Return GEOS installation prefix or None if not found."""
-
     env_candidate = os.environ.get("GEOS_DIR", None)
     if env_candidate is not None:
-        candidates = [env_candidate]
-    else:
-        candidates = [os.path.expanduser("~/local"), os.path.expanduser("~"),
-                      "/usr/local", "/usr", "/opt/local", "/opt", "/sw"]
+        return env_candidate
+
+    candidates = [
+        os.path.expanduser("~/local"),
+        os.path.expanduser("~"),
+        "/usr/local",
+        "/usr",
+        "/opt/local",
+        "/opt",
+        "/sw",
+    ]
 
-    # Prepare filename pattern to find the GEOS library.
     extensions = {"win32": "dll", "cygwin": "dll", "darwin": "dylib"}
     libext = extensions.get(sys.platform, "so*")
-    libname = "*geos_c*.{0}".format(libext)
+    libname = f"*geos_c*.{libext}"
     libdirs = ["bin", "lib", "lib/x86_64-linux-gnu", "lib64"]
 
     for prefix in candidates:
-        libfiles = []
         for libdir in libdirs:
-            libfiles.extend(glob.glob(os.path.join(prefix, libdir, libname)))
-        hfile = os.path.join(prefix, "include", "geos_c.h")
-        if os.path.isfile(hfile) and libfiles:
-            return prefix
-
-    # At this point, the GEOS library was not found, so we throw a warning if
-    # the user is trying to build the library.
-    build_cmds = ("bdist_wheel", "build", "install")
-    if any(cmd in sys.argv[1:] for cmd in build_cmds):
-        warnings.warn(" ".join([
-            "Cannot find GEOS library and/or headers in standard locations",
-            "('{0}'). Please install the corresponding packages using your",
-            "software management system or set the environment variable",
-            "GEOS_DIR to point to the location where GEOS is installed",
-            "(for example, if 'geos_c.h' is in '/usr/local/include'",
-            "and 'libgeos_c' is in '/usr/local/lib', then you need to",
-            "set GEOS_DIR to '/usr/local'",
-        ]).format("', '".join(candidates)), RuntimeWarning)
+            if glob.glob(os.path.join(prefix, libdir, libname)):
+                hfile = os.path.join(prefix, "include", "geos_c.h")
+                if os.path.isfile(hfile):
+                    return prefix
     return None
 
 
-class basemap_sdist(sdist):  # pylint: disable=invalid-name
-    """Custom `sdist` so that it will not pack DLLs on Windows if present."""
-
-    def run(self):
-        """Custom `run` command."""
-
-        # Replace DLL data files and add GEOS build script.
-        orig_data_files = self.distribution.data_files
-        self.distribution.data_files = [
-            (".", glob.glob(os.path.join("utils", "*.py")))]
-
-        # Run the original `run` method and leave `data_files` as it was found.
-        try:
-            sdist.run(self)
-        finally:
-            self.distribution.data_files = orig_data_files
-
-
-# Initialise include and library dirs.
-data_files = []
-include_dirs = []
-library_dirs = []
-runtime_library_dirs = []
-
-# Define NumPy include dirs.
-numpy_include_path = os.environ.get("NUMPY_INCLUDE_PATH", None)
-if numpy_include_path is not None:
-    include_dirs.append(numpy_include_path)
-else:
-    try:
-        import numpy
-        include_dirs.append(numpy.get_include())
-    except ImportError as err:
-        cmds = ("bdist_wheel", "build", "install")
-        if any(cmd in sys.argv[1:] for cmd in cmds):
-            warnings.warn("unable to locate NumPy headers", RuntimeWarning)
-
-# Define GEOS include, library and runtime dirs.
-geos_install_prefix = get_geos_install_prefix()
-if geos_install_prefix is not None:
-    include_dirs.append(os.path.join(geos_install_prefix, "include"))
-    library_dirs.append(os.path.join(geos_install_prefix, "lib"))
-    library_dirs.append(os.path.join(geos_install_prefix, "lib64"))
-    runtime_library_dirs = library_dirs
-    if os.name == "nt" or sys.platform == "cygwin":
-        # On Windows:
-        # - DLLs get installed under `bin`.
-        # - We need to inject later the DLL in the wheel using `data_files`.
-        # - We do not use `runtime_library_dirs` as workaround for a
-        #   `distutils` bug (http://bugs.python.org/issue2437).
-        library_dirs.append(os.path.join(geos_install_prefix, "bin"))
-        runtime_library_dirs = []
-        dlls = glob.glob(os.path.join(geos_install_prefix, "*", "*geos_c*.dll"))
-        if dlls:
-            data_files.append(("../..", sorted(dlls)))
-
-# Define `_geoslib` extension module. It cannot be installed in the
-# `mpl_toolkits.basemap` namespace or `Basemap` objects will not be pickleable.
-ext_modules = [
-    Extension(**{
-        "name":
-            "_geoslib",
-        "sources": [
-            "src/_geoslib.pyx",
-        ],
-        "libraries": [
-            "geos_c",
-        ],
-        "include_dirs":
-            include_dirs,
-        "library_dirs":
-            library_dirs,
-        "runtime_library_dirs":
-            runtime_library_dirs,
-    }),
-]
-for ext in ext_modules:
-    ext.cython_directives = [
-        ("language_level", str(sys.version_info[0])),
-        ("legacy_implicit_noexcept", True),
-    ][:1 + int(cython_major_version >= 3)]
-
-# Define all the different requirements.
-setup_requires = get_content("requirements-setup.txt", splitlines=True)
-install_requires = get_content("requirements.txt", splitlines=True)
-if sys.version_info[:2] == (3, 2):
-    # Hack for Python 3.2 because pip < 8 cannot handle version markers.
-    marker1 = '; python_version == "3.2"'
-    marker2 = '; python_version >= "2.7"'
-    setup_requires = [
-        item.replace(marker1, "").replace(marker2, "") for item in setup_requires
-        if item.endswith(marker1) or item.endswith(marker2)
-        or "python_version" not in item]
-    install_requires = [
-        item.replace(marker1, "").replace(marker2, "") for item in install_requires
-        if item.endswith(marker1) or item.endswith(marker2)
-        or "python_version" not in item]
-else:
-    marker1 = '; python_version == "3.2"'
-    setup_requires = [item for item in setup_requires if not item.endswith(marker1)]
-    install_requires = [item for item in install_requires if not item.endswith(marker1)]
-
-setup(**{
-    "name":
-        "basemap",
-    "version":
-        get_version("mpl_toolkits.basemap"),
-    "license":
-        "MIT",
-    "description":
-        "Plot data on map projections with matplotlib",
-    "long_description":
-        get_content("README.md"),
-    "long_description_content_type":
-        "text/markdown",
-    "url":
-        "https://matplotlib.org/basemap",
-    "author":
-        "Jeff Whitaker",
-    "author_email":
-        "jeffrey.s.whitaker@noaa.gov",
-    "maintainer":
-        "Víctor Molina García",
-    "maintainer_email":
-        "molinav@users.noreply.github.com",
-    "classifiers": [
-        "Development Status :: 5 - Production/Stable",
-        "Intended Audience :: Education",
-        "Intended Audience :: Science/Research",
-        "License :: OSI Approved :: MIT License",
-        "Operating System :: OS Independent",
-        "Programming Language :: Python :: 2",
-        "Programming Language :: Python :: 3",
-        "Topic :: Scientific/Engineering :: Visualization",
-        "Topic :: Software Development :: Libraries :: Python Modules",
-    ],
-    "keywords": [
-        "GIS",
-        "maps",
-        "plots",
-    ],
-    "namespace_packages": [
-        "mpl_toolkits",
-    ],
-    "package_dir":
-        {"": "src"},
-    "packages":
-        find_packages(where="src"),
-    "ext_modules":
-        ext_modules,
-    "data_files":
-        data_files,
-    "python_requires":
-        ", ".join([
-            ">=2.6",
-            "!=3.0.*",
-            "!=3.1.*",
-            "<3.13",
-        ]),
-    "setup_requires":
-        setup_requires,
-    "install_requires":
-        install_requires,
-    "extras_require": {
-        "doc":
-            get_content("requirements-doc.txt", splitlines=True),
-        "lint":
-            get_content("requirements-lint.txt", splitlines=True),
-        "test":
-            get_content("requirements-test.txt", splitlines=True),
-        "owslib":
-            get_content("requirements-owslib.txt", splitlines=True),
-        "pillow":
-            get_content("requirements-pillow.txt", splitlines=True),
-    },
-    "cmdclass": {
-        "sdist": basemap_sdist,
-    },
-    "project_urls": {
-        "Bug Tracker":
-            "https://github.com/matplotlib/basemap/issues",
-        "Documentation":
-            "https://matplotlib.org/basemap/",
-        "Source":
-            "https://github.com/matplotlib/basemap",
-    },
-})
+def get_extension_kwargs():
+    include_dirs = [np.get_include()]
+    library_dirs = []
+    runtime_library_dirs = []
+    data_files = []
+
+    # Get GEOS paths
+    geos_prefix = get_geos_install_prefix()
+    if geos_prefix:
+        include_dirs.append(os.path.join(geos_prefix, "include"))
+        lib_dir = os.path.join(geos_prefix, "lib")
+        lib64_dir = os.path.join(geos_prefix, "lib64")
+        library_dirs.extend([lib_dir, lib64_dir])
+        runtime_library_dirs = library_dirs.copy()
+
+        if os.name == "nt" or sys.platform == "cygwin":
+            bin_dir = os.path.join(geos_prefix, "bin")
+            library_dirs.append(bin_dir)
+            runtime_library_dirs = []
+            dlls = glob.glob(os.path.join(geos_prefix, "*", "*geos_c*.dll"))
+            if dlls:
+                data_files.append(("../..", sorted(dlls)))
+
+    return {
+        "name": "_geoslib",
+        "sources": ["src/_geoslib.pyx"],
+        "libraries": ["geos_c"],
+        "include_dirs": include_dirs,
+        "library_dirs": library_dirs,
+        "runtime_library_dirs": runtime_library_dirs,
+    }
+
+
+setup(
+    ext_modules=[Extension(**get_extension_kwargs())],
+    data_files=get_extension_kwargs().get("data_files", []),
+)
diff --git a/packages/basemap/src/_geoslib.pyx b/packages/basemap/src/_geoslib.pyx
index 676ac4d4b..6d1e36914 100644
--- a/packages/basemap/src/_geoslib.pyx
+++ b/packages/basemap/src/_geoslib.pyx
@@ -112,7 +112,7 @@ cdef extern from "geos_c.h":
 # Cython 3: Next cdef needs "noexcept" declaration unless
 # the compiler directive "legacy_implicit_noexcept" is used
 # ("noexcept" syntax supported since Cython 0.29.31).
-cdef void notice_h(const char *fmt, ...):
+cdef void notice_h(const char *fmt, ...) noexcept:
     pass
     #format = PyBytes_FromString(fmt)
     #message = PyBytes_FromString(msg)
diff --git a/packages/basemap_data/build.py b/packages/basemap_data/build.py
new file mode 100644
index 000000000..b3f686095
--- /dev/null
+++ b/packages/basemap_data/build.py
@@ -0,0 +1,31 @@
+import itertools
+
+
+def get_data_files():
+    # Define some helper lists
+    basenames = [
+        "countries",
+        "countriesmeta",
+        "gshhs",
+        "gshhsmeta",
+        "rivers",
+        "riversmeta",
+        "states",
+        "statesmeta",
+    ]
+    resolutions = ["c", "l", "i", "h", "f"]
+    grids = ["1.25", "2.5", "5", "10"]
+
+    # Define data assets
+    data_dat_files = [
+        f"{basename}_{res}.dat"
+        for basename, res in itertools.product(basenames, resolutions[:3])
+    ]
+    data_bin_files = [
+        f"lsmask_{grid}min_{res}.bin"
+        for grid, res in itertools.product(grids, resolutions)
+    ]
+    data_usc_files = [f"UScounties.{ext}" for ext in ("dbf", "prj", "shp", "shx")]
+    data_other_files = ["epsg", "bmng.jpg", "etopo1.jpg", "shadedrelief.jpg"]
+
+    return data_dat_files + data_bin_files + data_usc_files + data_other_files
diff --git a/packages/basemap_data/pyproject.toml b/packages/basemap_data/pyproject.toml
new file mode 100644
index 000000000..6c7c33d55
--- /dev/null
+++ b/packages/basemap_data/pyproject.toml
@@ -0,0 +1,63 @@
+[build-system]
+requires = [
+    "setuptools>=42",
+    "wheel"
+]
+build-backend = "setuptools.build_meta"
+
+[project]
+name = "basemap_data"
+version = "1.3.2"
+description = "Data assets for matplotlib basemap"
+readme = "README.md"
+requires-python = ">=3.9"  # Updated to match main package
+license = {text = "GNU Lesser General Public License v3 or later (LGPLv3+)"}
+authors = [
+    {name = "Jeff Whitaker", email = "jeffrey.s.whitaker@noaa.gov"}
+]
+maintainers = [
+    {name = "Víctor Molina García", email = "molinav@users.noreply.github.com"}
+]
+keywords = ["GIS", "maps", "plots"]
+classifiers = [
+    "Development Status :: 5 - Production/Stable",
+    "Intended Audience :: Education",
+    "Intended Audience :: Science/Research",
+    "License :: OSI Approved :: GNU Lesser General Public License v3 or later (LGPLv3+)",
+    "Operating System :: OS Independent",
+    "Programming Language :: Python :: 3",
+    "Programming Language :: Python :: 3.9",
+    "Programming Language :: Python :: 3.10",
+    "Programming Language :: Python :: 3.11",
+    "Programming Language :: Python :: 3.12",
+    "Topic :: Scientific/Engineering :: Visualization",
+    "Topic :: Software Development :: Libraries :: Python Modules"
+]
+
+[project.urls]
+Homepage = "https://matplotlib.org/basemap"
+Documentation = "https://matplotlib.org/basemap/"
+Repository = "https://github.com/matplotlib/basemap"
+"Bug Tracker" = "https://github.com/matplotlib/basemap/issues"
+
+[tool.setuptools]
+packages = ["mpl_toolkits.basemap_data"]
+package-dir = {"" = "src"}
+license-files = [
+    "COPYING",
+    "COPYING.LESSER",
+    "LICENSE.epsg",
+    "LICENSE.mit"
+]
+
+[tool.setuptools.package-data]
+"mpl_toolkits.basemap_data" = [
+    # This will be populated from build.py
+    "data/*"
+]
+
+[tool.setuptools.sdist]
+formats = ["zip"]
+
+[tool.setuptools.bdist-wheel]
+universal = true
diff --git a/packages/basemap_data/setup.cfg b/packages/basemap_data/setup.cfg
deleted file mode 100644
index 46fc44d00..000000000
--- a/packages/basemap_data/setup.cfg
+++ /dev/null
@@ -1,12 +0,0 @@
-[metadata]
-license_files =
-    COPYING
-    COPYING.LESSER
-    LICENSE.epsg
-    LICENSE.mit
-
-[sdist]
-formats = zip
-
-[bdist_wheel]
-universal = 1
diff --git a/packages/basemap_data/setup.py b/packages/basemap_data/setup.py
deleted file mode 100644
index 2d8e4e620..000000000
--- a/packages/basemap_data/setup.py
+++ /dev/null
@@ -1,137 +0,0 @@
-#! /usr/bin/env python
-# -*- coding: utf-8 -*-
-# flake8: noqa: E122
-"""basemap_data -- Data assets for matplotlib basemap."""
-
-import io
-import os
-import itertools
-from setuptools import setup
-from setuptools import find_packages
-
-
-def get_content(name, splitlines=False):
-    """Return the file contents with project root as root folder."""
-
-    here = os.path.abspath(os.path.dirname(__file__))
-    path = os.path.join(here, name)
-    with io.open(path, "r", encoding="utf-8") as fd:
-        content = fd.read()
-    if splitlines:
-        content = [row for row in content.splitlines() if row]
-    return content
-
-
-# Define some helper lists.
-basenames = [
-    "countries",
-    "countriesmeta",
-    "gshhs",
-    "gshhsmeta",
-    "rivers",
-    "riversmeta",
-    "states",
-    "statesmeta"
-]
-resolutions = [
-    "c",
-    "l",
-    "i",
-    "h",
-    "f",
-]
-grids = [
-    "1.25",
-    "2.5",
-    "5",
-    "10",
-]
-
-# Define data assets.
-data_dat_files = [
-    "%s_%s.dat" % (basename, res)
-    for basename, res in itertools.product(basenames, resolutions[:3])
-]
-data_bin_files = [
-    "lsmask_%smin_%s.bin" % (grid, res)
-    for grid, res in itertools.product(grids, resolutions)
-]
-data_usc_files = [
-    "UScounties.%s" % ext
-    for ext in ("dbf", "prj", "shp", "shx")
-]
-data_other_files = [
-    "epsg",
-    "bmng.jpg",
-    "etopo1.jpg",
-    "shadedrelief.jpg",
-]
-
-data_files = data_dat_files + data_bin_files + data_usc_files + data_other_files
-
-setup(**{
-    "name":
-        "basemap_data",
-    "version":
-        "1.3.2",
-    "license":
-        "GNU Lesser General Public License v3 or later (LGPLv3+)",
-    "description":
-        "Data assets for matplotlib basemap",
-    "long_description":
-        get_content("README.md"),
-    "long_description_content_type":
-        "text/markdown",
-    "url":
-        "https://matplotlib.org/basemap",
-    "author":
-        "Jeff Whitaker",
-    "author_email":
-        "jeffrey.s.whitaker@noaa.gov",
-    "maintainer":
-        "Víctor Molina García",
-    "maintainer_email":
-        "molinav@users.noreply.github.com",
-    "classifiers": [
-        "Development Status :: 5 - Production/Stable",
-        "Intended Audience :: Education",
-        "Intended Audience :: Science/Research",
-        "License :: OSI Approved :: GNU Lesser General Public License v3 or later (LGPLv3+)",
-        "Operating System :: OS Independent",
-        "Programming Language :: Python :: 2",
-        "Programming Language :: Python :: 3",
-        "Topic :: Scientific/Engineering :: Visualization",
-        "Topic :: Software Development :: Libraries :: Python Modules",
-    ],
-    "keywords": [
-        "GIS",
-        "maps",
-        "plots",
-    ],
-    "namespace_packages": [
-        "mpl_toolkits.basemap_data",
-    ],
-    "package_dir":
-        {"": "src"},
-    "packages":
-        find_packages(where="src"),
-    "package_data": {
-        "mpl_toolkits.basemap_data":
-            data_files,
-    },
-    "python_requires":
-        ", ".join([
-            ">=2.6",
-            "!=3.0.*",
-            "!=3.1.*",
-            "<4",
-        ]),
-    "project_urls": {
-        "Bug Tracker":
-            "https://github.com/matplotlib/basemap/issues",
-        "Documentation":
-            "https://matplotlib.org/basemap/",
-        "Source":
-            "https://github.com/matplotlib/basemap",
-    },
-})
diff --git a/packages/basemap_data_hires/build.py b/packages/basemap_data_hires/build.py
new file mode 100644
index 000000000..11b421161
--- /dev/null
+++ b/packages/basemap_data_hires/build.py
@@ -0,0 +1,22 @@
+import itertools
+
+
+def get_data_files():
+    # Define some helper lists
+    basenames = [
+        "countries",
+        "countriesmeta",
+        "gshhs",
+        "gshhsmeta",
+        "rivers",
+        "riversmeta",
+        "states",
+        "statesmeta",
+    ]
+    resolutions = ["c", "l", "i", "h", "f"]
+
+    # Define data assets
+    return [
+        f"{basename}_{res}.dat"
+        for basename, res in itertools.product(basenames, resolutions[3:])
+    ]
diff --git a/packages/basemap_data_hires/pyproject.toml b/packages/basemap_data_hires/pyproject.toml
new file mode 100644
index 000000000..1caba0318
--- /dev/null
+++ b/packages/basemap_data_hires/pyproject.toml
@@ -0,0 +1,61 @@
+[build-system]
+requires = [
+    "setuptools>=42",
+    "wheel"
+]
+build-backend = "setuptools.build_meta"
+
+[project]
+name = "basemap_data_hires"
+version = "1.3.2"
+description = "High-resolution data assets for matplotlib basemap"
+readme = "README.md"
+requires-python = ">=3.9"  # Updated to match main package
+license = {text = "GNU Lesser General Public License v3 or later (LGPLv3+)"}
+authors = [
+    {name = "Jeff Whitaker", email = "jeffrey.s.whitaker@noaa.gov"}
+]
+maintainers = [
+    {name = "Víctor Molina García", email = "molinav@users.noreply.github.com"}
+]
+keywords = ["GIS", "maps", "plots"]
+classifiers = [
+    "Development Status :: 5 - Production/Stable",
+    "Intended Audience :: Education",
+    "Intended Audience :: Science/Research",
+    "License :: OSI Approved :: GNU Lesser General Public License v3 or later (LGPLv3+)",
+    "Operating System :: OS Independent",
+    "Programming Language :: Python :: 3",
+    "Programming Language :: Python :: 3.9",
+    "Programming Language :: Python :: 3.10",
+    "Programming Language :: Python :: 3.11",
+    "Programming Language :: Python :: 3.12",
+    "Topic :: Scientific/Engineering :: Visualization",
+    "Topic :: Software Development :: Libraries :: Python Modules"
+]
+
+[project.urls]
+Homepage = "https://matplotlib.org/basemap"
+Documentation = "https://matplotlib.org/basemap/"
+Repository = "https://github.com/matplotlib/basemap"
+"Bug Tracker" = "https://github.com/matplotlib/basemap/issues"
+
+[tool.setuptools]
+packages = ["mpl_toolkits.basemap_data"]
+package-dir = {"" = "src"}
+license-files = [
+    "COPYING",
+    "COPYING.LESSER"
+]
+
+[tool.setuptools.package-data]
+"mpl_toolkits.basemap_data" = [
+    # This will be populated from build.py
+    "data/*"
+]
+
+[tool.setuptools.sdist]
+formats = ["zip"]
+
+[tool.setuptools.bdist-wheel]
+universal = true
diff --git a/packages/basemap_data_hires/setup.cfg b/packages/basemap_data_hires/setup.cfg
deleted file mode 100644
index e408a4da9..000000000
--- a/packages/basemap_data_hires/setup.cfg
+++ /dev/null
@@ -1,10 +0,0 @@
-[metadata]
-license_files =
-    COPYING
-    COPYING.LESSER
-
-[sdist]
-formats = zip
-
-[bdist_wheel]
-universal = 1
diff --git a/packages/basemap_data_hires/setup.py b/packages/basemap_data_hires/setup.py
deleted file mode 100644
index 7dbe83cf6..000000000
--- a/packages/basemap_data_hires/setup.py
+++ /dev/null
@@ -1,115 +0,0 @@
-#! /usr/bin/env python
-# -*- coding: utf-8 -*-
-# flake8: noqa: E122
-"""basemap_data_hires -- High-resolution data assets for matplotlib basemap."""
-
-import io
-import os
-import itertools
-from setuptools import setup
-from setuptools import find_packages
-
-
-def get_content(name, splitlines=False):
-    """Return the file contents with project root as root folder."""
-
-    here = os.path.abspath(os.path.dirname(__file__))
-    path = os.path.join(here, name)
-    with io.open(path, "r", encoding="utf-8") as fd:
-        content = fd.read()
-    if splitlines:
-        content = [row for row in content.splitlines() if row]
-    return content
-
-
-# Define some helper lists.
-basenames = [
-    "countries",
-    "countriesmeta",
-    "gshhs",
-    "gshhsmeta",
-    "rivers",
-    "riversmeta",
-    "states",
-    "statesmeta"
-]
-resolutions = [
-    "c",
-    "l",
-    "i",
-    "h",
-    "f",
-]
-
-# Define data assets.
-data_files = [
-    "%s_%s.dat" % (basename, res)
-    for basename, res in itertools.product(basenames, resolutions[3:])
-]
-
-setup(**{
-    "name":
-        "basemap_data_hires",
-    "version":
-        "1.3.2",
-    "license":
-        "GNU Lesser General Public License v3 or later (LGPLv3+)",
-    "description":
-        "High-resolution data assets for matplotlib basemap",
-    "long_description":
-        get_content("README.md"),
-    "long_description_content_type":
-        "text/markdown",
-    "url":
-        "https://matplotlib.org/basemap",
-    "author":
-        "Jeff Whitaker",
-    "author_email":
-        "jeffrey.s.whitaker@noaa.gov",
-    "maintainer":
-        "Víctor Molina García",
-    "maintainer_email":
-        "molinav@users.noreply.github.com",
-    "classifiers": [
-        "Development Status :: 5 - Production/Stable",
-        "Intended Audience :: Education",
-        "Intended Audience :: Science/Research",
-        "License :: OSI Approved :: GNU Lesser General Public License v3 or later (LGPLv3+)",
-        "Operating System :: OS Independent",
-        "Programming Language :: Python :: 2",
-        "Programming Language :: Python :: 3",
-        "Topic :: Scientific/Engineering :: Visualization",
-        "Topic :: Software Development :: Libraries :: Python Modules",
-    ],
-    "keywords": [
-        "GIS",
-        "maps",
-        "plots",
-    ],
-    "namespace_packages": [
-        "mpl_toolkits.basemap_data",
-    ],
-    "package_dir":
-        {"": "src"},
-    "packages":
-        find_packages(where="src"),
-    "package_data": {
-        "mpl_toolkits.basemap_data":
-            data_files,
-    },
-    "python_requires":
-        ", ".join([
-            ">=2.6",
-            "!=3.0.*",
-            "!=3.1.*",
-            "<4",
-        ]),
-    "project_urls": {
-        "Bug Tracker":
-            "https://github.com/matplotlib/basemap/issues",
-        "Documentation":
-            "https://matplotlib.org/basemap/",
-        "Source":
-            "https://github.com/matplotlib/basemap",
-    },
-})