Houston atlas
Overture Maps Foundation; © OpenStreetMap contributors.
Contains a derived Overture database licensed under ODbL 1.0:
https://opendatacommons.org/licenses/odbl/1-0/
Upstream terms: https://docs.overturemaps.org/attribution/
Microsoft ML Buildings: ODbL-1.0
OpenStreetMap: ODbL-1.0
TomTom: ODbL-1.0
USGS Lidar: see source terms

Terrain: USGS 3DEP (public domain). Places/ZIPs: U.S. Census Gazetteer 2025 and cartographic boundaries 2020 (public domain).
Center: Handbook of Texas, Houston Heights. MapLibre: MAPLIBRE-LICENSE.txt; Geist: GEIST-OFL.txt.
ODbL 4.6(a): the entire derived tile database is freely downloadable. See method.json and the file inventory in manifest.json.