Geology of South Dakota


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Welcome to Virtual Geology Field Trips of South Dakota!

South Dakota's geological history is rich and varied. Three tours are designed to provide information by geographic locality, each of which has been impacted by a different aspect of geological history. To explore a region, left click twice on a corresponding image below.

Black Hills | Central Western | Eastern


Left-clicking twice on a region of this map will also direct you to tours according to region of interest:

General Geology Map of South Dakota

Black Hills | Central Western | Eastern

Access a larger geologic map


Web Page Contact

A display of South Dakota rock, mineral, and fossil specimens is being assembled in Agriculture Hall at South Dakota State University. Specimen donations for this educational display will be gratefully appreciated.

Donations as well as c
omments and suggestions for improving this site can be directed to:

Howard J. Woodard
Plant Science Department, South Dakota State University
Box 2207-A
Brookings, SD 57007-1096

Updated July 1, 2005