Government Information: Map Links

Click on the word topoView in the webpage’s text to search for USGS topographic maps by location and year.

CIESIN works at the intersection of the social, natural, & information sciences, & specializes in on-line data & information management, spatial data integration and training, and interdisciplinary research related to human interactions in the environment

A leading source of land information for exploring our changing planet.

One-stop source for environmental information.

Geographic Names Information System.

Geographic Information System Sites.

The MABLE/Geocorr geographic correspondence engine generates files and/or reports showing the relationships between a wide variety of geographic coverages for the United States.

The Missouri Spatial Data Information Service provides public access to GIS and census data about the State of Missouri.

The Geospatial Data Clearinghouse is a collection of over 250 spatial data servers, that have digital geographic data primarily for use in Geographic Information Systems (GIS), image processing systems, and other modelling software.

Socioeconomic Data and Applications Center. SEDAC’s mission is to develop & operate applications that support the integration of socioeconomic and earth science data and to serve as an “information gateway” between the earth sciences and social scie

Social Explorer provides easy access to demographic information about the United States, from 1790 to 2000.

Topologically Integrated Geographic Encoding and Referencing system.

The Federal Geographic Data Committee (FGDC) promotes the coordinated development, use, sharing, and dissemination of geographic data.

WebGIS.com presently contains extensive map coverage for technical applications including Air Dispersion Modeling, Human Health & Ecological Risk Assessment and Terrain Processing. These maps are ready for download in various formats, to facilitate your modeling.

Maps of South Dakota and all 50 states.