Unified Interior Regions

South Dakota

Surface water and groundwater provide important water supplies in South Dakota. Major rivers include the Big Sioux, James, Cheyenne, and Missouri Rivers. Key aquifers include the Dakota, Madison, Minnelusa, and Big Sioux aquifers. The Dakota Water Science Center has many studies that focus on these resources as well various other national and international studies. 

Link to Science Center

States L2 Landing Page Tabs

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Image: Drilling Operations for Municipal Well in Rapid City, SD
October 21, 2002

Drilling Operations for Municipal Well in Rapid City, SD

Drilling operations for a Rapid City municipal well in the Madison aquifer in 2002.

Image: Cleghorn Springs at Rapid City, SD
October 18, 2001

Cleghorn Springs at Rapid City, SD

Streamgage 06412810, Cleghorn Springs at Rapid City, SD.

Image: Redwater River, South Dakota
June 11, 2001

Redwater River, South Dakota

Redwater River near Belle Fourche, SD.

Image: Belle Fourche River, SD
June 11, 2001

Belle Fourche River, SD

The Belle Fourche River is a major drainage for the northern Black Hills of South Dakota.

Image: Lime Creek Observation Well, Rapid City, SD
June 1, 2001

Lime Creek Observation Well, Rapid City, SD

The Lime Creek observation well in Rapid City, SD, is a flowing well where the shut-in pressure is measured. The well is completed in the Madison aquifer and is 1,391-feet deep.

Image: Streamgage 06404998, Grace Coolidge Creek, SD
May 25, 2001

Streamgage 06404998, Grace Coolidge Creek, SD

Streamgage on Grace Coolidge Creek near Game Lodge near Custer, SD, 06404998.

Image: Limestone Plateau West of Custer, SD
May 25, 2001

Limestone Plateau West of Custer, SD

The Limestone Plateau along the South Dakota-Wyoming border west of Custer, SD. Numerous headwater springs occur along the eastern edge of the Limestone Plateau. Large outcrops of the Madison Limestone and Minnelusa Formation form the plateau.

Image: Precambrian Rocks in the Black Hills, SD
May 24, 2001

Precambrian Rocks in the Black Hills, SD

Precambrian rocks in the Black Hills of South Dakota. Precambrian rocks form the central crystalline core of the Black Hills. Fracturing and weathering in Precambrian rocks affect the availability of water in this unit.

Image: Bear Butte Creek, South Dakota
May 24, 2001

Bear Butte Creek, South Dakota

Bear Butte Creek in northern Black Hills near Deadwood, SD.

Image: Beaver Creek at Mallo Camp near Four Corners, WY
May 24, 2001

Beaver Creek at Mallo Camp near Four Corners, WY

Beaver Creek at Mallo Camp near Four Corners, WY.

Image: Sand Creek at Ranch A near Beulah, WY
May 24, 2001

Sand Creek at Ranch A near Beulah, WY

Sand Creek at Ranch A near Beulah, Wyoming.

Image: Spearfish Creek, SD
May 24, 2001

Spearfish Creek, SD

Spearfish Creek in the northern Black Hills of South Dakota.