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Protected Areas Database of the United States (PADUS) - Combined: Version 1.3 - Ownership Layer


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The Protected Areas Database of the United States (PAD-US) is a geodatabase, managed by U. S. Geological Survey Gap Analysis Program, that illustrates and describes public land ownership, management and other conservation lands, including voluntarily provided privately protected areas. The geodatabase contains four feature classes such as, ‘Marine Protected Areas (MPA)’ and ‘Easements’ that each contains uniquely associated attributes. These two feature classes are combined with the PAD-US ‘Fee’ feature class to provide a full inventory of protected areas in a common schema (i.e. ‘Combined’ file). Legitimate and other protected area overlaps exist in the full inventory, with Easements loaded on top of Fee and MPAs under both. Parcel [...]


Point of Contact :
Lisa Duarte
Distributor :
Lisa Duarte
Metadata Contact :
Lisa Duarte
Originator :
U. S. Geological Survey (USGS) Gap Analysis Program (GAP)

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Purpose: The mission of the USGS Gap Analysis Program (GAP) is to provide state, regional and national assessments of the conservation status of native vertebrate species and natural land cover types and to facilitate the application of this information to land management activities. The PAD-US geodatabase is required to organize and assess the management status (i.e. apply GAP Status Codes) of elements of biodiversity protection. The goal of GAP is to keep common species common by identifying species and plant communities not adequately represented in existing conservation lands. Common species are those not currently threatened with extinction. By identifying their habitats, Gap Analysis gives land managers and policy makers the information they need to make better-informed decisions when identifying priority areas for conservation. In cooperation with UNEP-World Conservation Monitoring Centre, GAP ensures PAD-US also supports global analyses and policy decisions by maintaining World Database for Protected Areas (WDPA) Site Codes and data for International Union for the Conservation of Nature (IUCN) categorized protected areas in the United States. GAP seeks to increase the efficiency and accuracy of PAD-US updates by leveraging resources in protected areas data aggregation and maintenance as described in "A Map of the Future", published following the PAD-US Design Project (July, 2009) available at:

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