U.S. Geological Survey (USGS) Gap Analysis Project (GAP), 2018, Protected Areas Database of the United States (PAD-US): USGS Science Analytics and Synthesis (SAS), https://doi.org/10.5066/P955KPLE
Summary
Downloadable PAD-US 2.0 state poster maps in high resolution .pdf for plotting and low resolution .jpg formats
Summary
Downloadable PAD-US 2.0 state poster maps in high resolution .pdf for plotting and low resolution .jpg formats