Fact Sheet 2013–3086
The Gap Analysis Program produces data and tools that help meet critical national challenges such as biodiversity conservation, renewable energy development, climate change adaptation, and infrastructure investment. The Protected Areas Database of the United States (PAD-US) is the official inventory of protected open space in the United States. With over 715 million acres in thousands of holdings, the spatial data in PAD-US include public lands held in trust by national, State, and some local governments, and by some nonprofit conservation organizations.
First posted November 12, 2013
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Gergely, K.J., and McKerrow, A., 2016, PAD-US—National inventory of protected areas (ver. 1.1, August 2016): U.S. Geological Survey Fact Sheet 2013–3086, 2 p., https://pubs.usgs.gov/fs/2013/3086/.