Spatial Data by Geography - USA

United States of America

Biodiversity Information Serving Our Nation (BISON)
United States Geological Survey (USGS)
BISON is an information system that allows users to access, explore, and download U.S. species occurrence data from participating data providers.
U.S. Government
This portal serves as a public gateway for improving access to geospatial information and data, integrating the former "Geospatial One-Stop" portal and catalog. Users can find Federal, State and Local GIS data.

Montana Geographic Information Clearinghouse
Natural Resource Information System (NRIS)
A comprehensive collection of geospatial data for Montana.

National Historic Geographic Information System (NHGIS)
National Science Foundation, National Institutes of Health and Minnesota Population Center
The National Historical Geographic Information System (NHGIS) provides, free of charge, aggregate census data and GIS-compatible boundary files for the United States between 1790 and 2011.

The National Map Viewer & Download Platform
United States Geological Survey (USGS)
Provides access to all eight primary data themes of The National Map. Free downloads of national base layers are available as well as other geospatial data layers such as places, transportation, structures, boundaries, hydrography, orthoimagery, elevation and land cover.

National Park Service Geography and Mapping Technologies
U.S. Department of the Interior
Discover & download GIS data for National Parks in the United States.

National Weather Service GIS Data Portal
National Oceanic and Atmospheric Administration
The National Weather Service produces several data sets that are available in various formats available to import into Geographic Information Systems (GIS).

NOAA Digital Coast
National Oceanic and Atmospheric Administration
This website provides data required by coastal resource management professionals, as well as the tools, training, and information needed to turn these data into useful information. Includes navigation charts of the U.S. shoreline and the Great Lakes.

United States Geological Survey (USGS) National Water and Climate Center (NWCC)
The Natural Resources Conservation Service (NRCS) installs, operates, and maintains an extensive, automated system to collect snowpack and related climatic data in the Western United States called SNOTEL (for SNOwpack TELemetry). All data are received by the SNOTEL central computer, which in turn is linked to the Centralized Forecasting System (CFS) in the NWCC where data can be accessed via the NWCC homepage.

USGS "Atlas of Relations Between Climatic Parameters and Distributions of Important Trees and Shrubs in North America"
United States Geological Survey (USGS)
These web pages provide access to the text, digital representations of figures, and supplemental data files from USGS Professional Paper 1650, chapters A and B.

USGS EarthExplorer
United States Geological Survey (USGS)
Access, view, and download information from geospatial databases containing a broad spectrum of data produced by the USGS and other government agencies.

Web Soil Survey
United States Department of Agriculture (USDA)
Web Soil Survey (WSS) provides soil data and information produced by the National Cooperative Soil Survey. It is operated by the USDA Natural Resources Conservation Service (NRCS) and provides access to the largest natural resource information system in the world.

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