Nationwide geographic databases of transportation facilities, transportation networks, and associated infrastructure.
Disaster mitigation, preparedness, response, recovery, education, and references.
Source for land-related data collected by EOS sensors.
A rich source of information about America’s health.
Historic census geography provided by U of Minnesota.
Provides information and products related to the definition and management of the National Spatial Reference System (NSRS) – the framework for latitude, longitude, height, scale, gravity, orientation and shoreline throughout the United States.
The NGA provides imagery, map-based intelligence and geospatial information in support of the nation’s military forces, national policy makers and civil users.
GIS data sources for criminal justice analysis.
Federal agency focused on the condition of the oceans and the atmosphere. Provides environmental information products.
Containing environmental data from satellites and other sources to promote, protect, and enhance the Nation’s economy, security, environment, and quality of life.
Good sources for national soil survey spatial and tabular data.
National census data. A leading source for data about America’s people and economy.
Environmental laws, regulations, and data.
USFWS has a Geospatial Services platform that provides national and regional GIS data.
One Stop Source for environmental and natural resources data. The Gateway allows you to choose your area of interest, browse and select data from their catalog, customize the format, and have it downloaded or shipped.
Great source for U.S. topographic data. Other data includes aerial photography, satellite imagery, land cover, digitized maps, etc.
Site no longer available. For current USGS Energy Program data, please visit the USGS Energy Program’s website at http://energy.usgs.gov/index.html. For USGS Geospatial databases, please visit the Geospatial website at http://www.usgs.gov/ngpo/.
Node of the National Geospatial Data Clearinghouse. Provides leadership for USGS geospatial coordination, production and service activities. The Program engages partners to develop standards and produce consistent and accurate data through its Geospatial liaison network.
Free downloadable spatial data sets.