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Fact Sheet 2013–3086

Gap Analysis Project

PAD-US—National Inventory of Protected Areas

By Kevin J. Gergely and Alexa McKerrow

Thumbnail of and link to report PDF (208 kB)Abstract

The Gap Analysis Project 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 public parks and other protected open space. Consisting of more than 7 billion acres in 436,000 land and marine units, the spatial data in PAD–US include areas managed by greater than 30,000 agencies and nonprofit organizations.

First posted November 12, 2013

Revised December 9, 2020

For additional information, contact:
Science Analytics and Synthesis
U.S. Geological Survey
W 6th Ave Kipling St
Lakewood, CO 80225

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Suggested citation:

Gergely, K.J., and McKerrow, A., 2016, PAD-US—National inventory of protected areas (ver. 1.2, December 2020): U.S. Geological Survey Fact Sheet 2013–3086, 2 p.,

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