These sources of geographic data are made available by the US government.
- Geospatial One-Stop -
an e-government initiative to serve as a single portal for geospatial information from the government.
National Academy of Sciences
National Cancer Institute
US Geological Survey
Census Bureau
Environmental Protection Agency
- EnviroMapper
Storefront - an online tool used to map various types
of environmental information at the national, state, and
county levels.
Centers for Disease Control
Federal Geographic Data Committee
- Federal Geographic Data Committee -
an interagency committee which is developing the National Spatial Data Infrastructure.
- National Geospatial Data Clearinghouse -
a searchable collection of over 250 spatial data servers
containing digital geographic data primarily for use in Geographic Information Systems,
image processing systems, and other modelling software.
National Library of Medicine
- TOXNET -
a cluster of databases on toxicology, hazardous chemicals, and related areas.
Bureau of Transportation Statistics
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