Skip to main content
U.S. flag

An official website of the United States government

Web Tools

Collection of Gap Analysis Project Web Tools and Map Viewers.

U.S. Register of Introduced and Invasive Species StoryMap

Comprehensive and Authoritative Lists of Non-Native Taxa Established in Alaska, Hawaii, and the Conterminous United States.

PAD-US Data Explorer

Administered by the U.S. Geological Survey Gap Analysis Project, the Protected Areas Database of the United States (PAD-US) is the nation’s official inventory of public open space and private protected areas. The lands included in PAD-US are assigned conservation status codes that both denote the level of biodiversity preservation and indicate other natural, recreational and cultural uses.

PAD-US Statistics Dashboard

Administered by the U.S. Geological Survey Gap Analysis Project, the Protected Areas Database of the United States (PAD-US) is the nation’s official inventory of public open space and private protected areas. The lands included in PAD-US are assigned conservation status codes that both denote the level of biodiversity preservation and indicate other natural, recreational and cultural uses.

National Biogeographic Map

The National Biogeographic Map (NBM) is a project of the Core Science Systems Mission Area. The project’s goal is to provide a platform for analysis of questions about what species are where, how well protected they are, how vulnerable they are to stressors, and what management options will have the greatest benefit for conservation of biodiversity.

Download Species Range and Predicted Habitat Data

This tool allows the user to explore or download the National Gap terrestrial species habitat distribution models, ranges and the species models reports. These models cover the conterminous U.S. and were based on 2001 land cover conditions.

Protected Areas Database of the United States (PAD-US) Viewer

The Protected Areas Database of the United States (PAD-US) Viewer provides a spatially explicit inventory that lets any user – from the general public to professional land managers – explore the protected areas network anywhere in the United States and allows them to easily use this inventory in conservation, land management, planning, recreation and other uses.

GAP/LANDFIRE National Terrestrial Ecosystems 2011 Map Viewer

The GAP/LANDFIRE National Terrestrial Ecosystems represents a highly thematically detailed land cover map of the U.S. This dataset is produced by the U.S. Geological Survey in collaboration with the LANDFIRE Program.  The spatial data layer was created using Landsat satellite imagery and a detailed vegetation and land use classification system.

National Vegetation Classification Standard

The National Vegetation Classification (NVC) is your guide to inventorying plant communities. The standard allows users to produce uniform statistics about vegetation resources across the nation. CSAS&L actively participates in the development of this important standard through our involvement with the FGDC Vegetation Subcommittee and the ESA Vegetation Panel.