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PAD-US 4.0 Full Inventory Database


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U.S. Geological Survey (USGS) Gap Analysis Project (GAP), 2024, Protected Areas Database of the United States (PAD-US) 4.0: U.S. Geological Survey data release,


The USGS Protected Areas Database of the United States (PAD-US) is the nation's inventory of protected areas, including public land and voluntarily provided private protected areas, identified as an A-16 National Geospatial Data Asset in the Cadastre Theme ( ). The PAD-US is an ongoing project with several published versions of a spatial database including areas dedicated to the preservation of biological diversity, and other natural (including extraction), recreational, or cultural uses, managed for these purposes through legal or other effective means. The database was originally designed to support biodiversity assessments; however, its scope expanded in recent years to include [...]


Attached Files

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“PAD-US 4.0 Full Inventory Data”
1.59 GB application/x-zip-compressed
“Processing Scripts and Associated files for PAD-US 4.0”
18.61 MB application/zip
“PAD-US Version History”
28.54 KB text/plain


The PAD-US geodatabase was originally developed to organize and assess the management status (i.e. apply 'GAP Status Code') of elements of biodiversity protection by identifying species and plant communities not adequately represented in existing conservation lands ( ). In cooperation with the United Nations Environment Programme World Conservation Monitoring Centre (UNEP-WCMC), PAD-US also supports global conservation analyses to inform policy decisions ( , ). The dataset is robust and continually expanded to support the recreation, natural resource management, wildfire planning, emergency management, transportation, research, and public health communities. New applications of the data are frequently discovered. Multiple attributes and a flexible database structure provide context for data to be used at local, regional, state, national, and international scales. See for more information.


Public Domain. Unless otherwise stated, all data, metadata and related materials are considered to satisfy the quality standards relative to the purpose for which the data were collected. Although these data and associated metadata have been reviewed for accuracy and completeness and approved for release by the U.S. Geological Survey (USGS), no warranty expressed or implied is made regarding the display or utility of the data for other purposes, nor on all computer systems, nor shall the act of distribution constitute any such warranty.



  • USGS Data Release Products




Data source
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Protected Areas Database of the United States (PAD-US) 4 completed by the Protected Areas Database of the Unites States Team/Gap Analysis Project/Science Analytics and Synthesis/Core Science Systems on April 24, 2024. To review the changes that were made, see the “VersHist-PAD-US.txt” file contained in the Attached Files section of each Full Inventory Database child item.

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