Region boundary data
====================

The files in this directory (*.json except manifest.json's metadata and nepal.json, see
below) are derived from Natural Earth vector data (https://www.naturalearthdata.com/), which is in the PUBLIC DOMAIN.
No permission is needed to use Natural Earth; attribution is appreciated:
"Made with Natural Earth. Free vector and raster map data @ naturalearthdata.com."

Source:   https://github.com/nvkelso/natural-earth-vector (master branch, geojson/)
          - ne_50m_admin_0_countries.geojson      (world, continents)
          - ne_10m_admin_1_states_provinces.geojson (US states and country subdivisions)
Version:  Natural Earth v5.1.2 (latest release; repository VERSION file reads 5.2.0-pre).
          Last upstream change to the files used: 2022-05-13 (commit 9380cca).
Downloaded: 2026-09-29

The data was re-projected, simplified, dissolved and re-coded by tools/regions/build.mjs.
Boundaries follow Natural Earth's default (de facto) world view and do not imply any
opinion on the legal status of any territory.

nepal.json (Nepal, 7 provinces)
-------------------------------
Source:   Survey Department of Nepal, OCHA FISS, via geoBoundaries (gbOpen NPL ADM1,
          https://www.geoboundaries.org/, commit 9469f09; boundary year 2020).
License:  Creative Commons Attribution 3.0 IGO (CC BY 3.0 IGO),
          https://creativecommons.org/licenses/by/3.0/igo/
          Original: https://data.humdata.org/dataset/administrative-bounadries-of-nepal
Changes:  re-projected and simplified by tools/regions/build.mjs; province names updated to
          the current official names (Koshi, Madhesh).
Downloaded: 2026-09-29

us-counties-*.json (county maps for every US state)
---------------------------------------------------
Source:   US Census Bureau cartographic boundary files (public domain), via us-atlas 3.0.1
          (https://github.com/topojson/us-atlas), ISC license, Copyright 2013-2019 Michael Bostock.
Changes:  re-projected and simplified by tools/regions/build.mjs.

Detailed maps (second-level units)
----------------------------------
france-departments, italy-provinces, spain-provinces, philippines-provinces:
          Natural Earth admin-1 layer (public domain, see above).

The following come from geoBoundaries (https://www.geoboundaries.org/, gbOpen, simplified
release) under the licence of each original publisher. All were re-projected and simplified
by tools/regions/build.mjs; region ids are derived from the unit and parent state names.
Downloaded: 2026-09-29

united-kingdom-districts.json  Office for National Statistics Open Geography Portal (2019).
                               Open Government Licence v3.0. Contains public sector information
                               licensed under the Open Government Licence v3.0; contains OS data
                               © Crown copyright and database right.
germany-districts.json         © GeoBasis-DE / BKG (2021), Bundesamt für Kartographie und Geodäsie.
                               Data licence Germany – attribution – version 2.0 (dl-de/by-2-0).
canada-economic-regions.json   Statistics Canada (2022). Open Government Licence – Canada 2.0.
australia-lgas.json            Australian Bureau of Statistics (2022). CC BY 4.0.
new-zealand-districts.json     Stats NZ (2021). CC BY 4.0.
india-districts.json           Pathways Data Pvt. Ltd., lgdirectory.gov.in (2021). Open Data Commons
                               Open Database License 1.0 (ODbL). This derived file is made available
                               under the ODbL: https://opendatacommons.org/licenses/odbl/1-0/
mexico-municipalities-*.json   World Bank / INEGI (2012). CC BY 4.0.
