The Minnesota Department of Natural Resources provides maps and information on the river basins and watershed of Minnesota from its website. For the DNR description of a watershed, see Watershed.   This site also shows the major basins and watersheds of Minnesota.  Coverage includes water characteristics, landscape, fish and wildlife, and cultural information.  DNR also provides descriptive information on the Snake River in particular.  See DNR Snake River.

The U.S. Environmental Protection Agency provides extensive information on the Snake River watershed from its website.  This information includes: environmental profile, water, land, people, and air.  See EPA Snake River Watershed profile.