Geologic Provinces of the United States: Interior Plain Province
http://geomaps.wr.usgs.gov/parks/province/intplain.html

USGS: Western Region Geologic Information

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This USGS site provides an overview of the geologic history of the interior plains province. External links lead to information about national parks that exhibit interior plains geology and similar overviews of other physiographic provinces. An image gallery and additional maps and illustrations are also provided.

This resource is referenced here:

• Integrating Research and Education:Impacts on American Indian Lands:Pine Ridge: Geology and Physiography of the Badlands
• Integrating Research and Education:Impacts on American Indian Lands:Pine Ridge: Geology and Physiography of the Black Hills
• Integrating Research and Education:Impacts on American Indian Lands:Fort Belknap: Geology and Physiography
• Integrating Research and Education:Impacts on American Indian Lands:Crow: Geology and Physiography

Subject: Geography:Physical, Geoscience:Geology:Historical Geology, Geomorphology
Resource Type: Scientific Resources:Overview/Reference Work
Theme: Teach the Earth:Teaching Topics:Early Earth, Teach the Earth:Course Topics:Geomorphology