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Miscellaneous Investigations Series I-1420 (NL-14)

Prepared in cooperation with The North Dakota Geological Survey, South Dakota Geological Survey, and The Minnesota Geological Survey

Quaternary Geologic Map of the Dakotas 4° x 6° Quadrangle, United States

State compilations by David S. Fullerton, John P. Bluemle, Lee Clayton, Fred V. Steece, Merlin J. Tipton, Richard Bretz, and Joseph E. Goebel

Edited and integrated by David S. Fullerton

Digital database by Charles A. Bush

Thumbnail of and link to map PDF (7.1 MB)

This map is part of the Quaternary Geologic Atlas of the United States (I-1420). It was first published as a printed edition in 1995. The geologic data has now been captured digitally and are presented here along with images of the printed map sheet and component parts as PDF files.

The Quaternary Geologic Map of the Dakotas 4° x 6° Quadrangle was mapped as part of the Quaternary Geologic Atlas of the United States. The atlas was begun as an effort to depict the areal distribution of surficial geologic deposits and other materials that accumulated or formed during the past 2+ million years, the period that includes all activities of the human species. These materials are at the surface of the earth. They make up the "ground" on which we walk, the "dirt" in which we dig foundations, and the "soil" in which we grow crops. Most of our human activity is related in one way or another to these surface materials that are referred to collectively by many geologists as regolith, the mantle of fragmental and generally unconsolidated material that overlies the bedrock foundation of the continent. The maps were compiled at 1:1,000,000 scale.

First posted March 4, 2011

For additional information contact:

Center Director, USGS Geology and Environmental Change Science Center
Box 25046, Mail Stop 980
Denver, CO 80225

Part or all of this report is presented in Portable Document Format (PDF); the latest version of Adobe Reader or similar software is required to view it. Download the latest version of Adobe Reader, free of charge.

Suggested citation:

Fullerton, D.S., Bluemle, L.C., Steece, F.V., Tipton, M.J., Bretz, Richard, and Goebel, J.E., 1995, Quaternary geologic map of the Dakotas 4° x 6° quadrangle, United States: U.S. Geological Survey Miscellaneous Investigations Series Map I–1420 (NL–14), scale 1:1,000,000.

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