Sources & attribution

USGS PAD-US

Protected area boundaries and attributes: U.S. Geological Survey (USGS) Gap Analysis Project (GAP), 2024, Protected Areas Database of the United States (PAD-US) 4.1: U.S. Geological Survey data release, https://doi.org/10.5066/P96WBCHS. Public domain. More information: PAD-US data overview (USGS). Data were processed (filtered, merged, simplified) for this site; USGS has not reviewed or endorsed this site.

U.S. Census Bureau

County boundaries: 2023 Cartographic Boundary File, counties, 1:500,000 (U.S. Census Bureau).

Map links

“OpenStreetMap” links open openstreetmap.org, map data © OpenStreetMap contributors. “Google Maps” links open Google Maps. This site does not embed third-party map tiles; the small outlines on area pages are drawn from PAD-US boundaries.

State agency links

See the list of state wildlife agencies. Links were checked on 2026-09-25.