Open data

Insights about project management, GIS, and how technology is transforming industries operating in the physical world.

Free Geospatial Data for Brazil: Verified List, September 2026

Verified list of free geospatial data for Brazil: IBGE meshes and census tracts, INPE's PRODES, DETER and fire hotspots, MapBiomas, ANA hydrography, conservation units, indigenous lands, roads, mining and power plants. Every link tested 15 September 2026, format, measured CRS and licence as printed.

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GeoTIFF & COGOpen data

Free DEM and Elevation Data Sources, Verified in September 2026

Forty-eight URLs across sixteen elevation sources, probed on 11 September 2026: what each one answered, what resolution and vertical datum it really carries, which ones a browser app can read, and which famous links are now dead.

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Open data

Free Geospatial Data for Brazil: Verified List, September 2026

Free DEM and Elevation Data Sources, Verified in September 2026

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