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Illinois Natural Resources Geospatial Data Clearinghouse

This site is a gateway to GIS data and imagery for Illinois. Available data sets and documentation (metadata) include: geology, water resources, nature preserves, wildlife areas, land use, political boundaries, roads, census information, Public Land Survey, Digital Raster Graphics files, and 1998/99 Digital Orthophoto Quarter Quadrangles. A Metadata online search is also now available.

Illinois Watershed Management Clearinghouse

This site contains a web based mapping system for Illinois watersheds. Links to external data providers dealing with the subject of water and watersheds are also provided.

Missouri Digital Soil Survey

This site contains online surveys, map room, and data downloads for soil information in Missouri.

Missouri River InfoLink: A Clearinghouse of Missouri River Information

Missouri River InfoLink connects to Missouri River information, aerial photographs, maps, and data. Included are: environmental assessment reports, basin-wide maps, USGS 1:100,000 quadrangle maps, and 1894 Missouri River Commission maps. Also available are statistical tables with county data on agriculture and agricultural products sales and values.

Missouri Spatial Data Information Service

The Missouri Spatial Data Information Service provides geographic information systems and census data about the state of Missouri to the public by way of anonymous FTP and this World Wide Web site.

Missouri's Rivers and their Watersheds

This site has been established to provide natural resource related information specific to Missouri's primary watersheds. The state's watersheds are often indexed in one of two ways, either with the USGS 8-digit hydrologic unit listing or the primary watershed delineation used by the Missouri Department of Conservation.

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