Images

Looking upstream from US Highway 12 bridge at Marmarth on the Little Missouri. The mean streamflow for September 18, 2002 was 1.00 cfs. Long-term streamflow for September 18 is 42.8 cfs based on 63 years of record (according to NWIS). On September 18, 2002, the Little Missouri River at Marmarth was flowing at 2.3% of the long-term mean streamflow.

Streamgage 06412810, Cleghorn Springs at Rapid City, SD.

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

Redwater River near Belle Fourche, 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.

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

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.

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

Outcrop of the Minneslua Formation at Ranch A near Beulah, Wyoming. The Minnelusa Formation consists mostly of yellow to red sandstone, limestone, dolomite, and shale.

Photograph taken in 2001 of Mt. Coolidge area in Black Hills of western South Dakota. The area was burned by the Galena Fire in 1988, which burned approximately 17,000 acres in Custer State Park.

Towering cliff of the Deadwood Formation in Deadwood, SD. The Deadwood Formation consists mostly of sandstone and shale.

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.

Sand Creek at Ranch A near Beulah, Wyoming.

Spearfish Creek in the northern Black Hills of South Dakota.

Headwater springflow is common in the Limestone Pateau area in the Black Hills of western South Dakota. Most headwater springs in the Black Hills, like this one contributing to Rhoads Fork, generally occur near the base of the Madison Limestone along the eastern edge of the Limestone Plateau area.

Grace Collidge Creek above loss zone in southern Black Hills of South Dakota.

Spearfish Formation near Spearfish, SD. The Spearfish Formation is a red, silty shale with interbedded red sandstone and siltstone. The formation contains massive gypsum deposits, which is the white layer in the photograph.

Naturally occuring bog-iron area near Rochford, SD, in the Black Hills of western South Dakota.

Photograph taken in 2001 of an area burned by the Jasper Fire that started on August 24, 2000, just west of Jewel Cave in the southern Black Hills of South Dakota. A total of about 84,000 acres was burned by the Jasper Fire.

Outcrop of the Madison Limestone in Spearfish Canyon in the northern Black Hills of South Dakota. The Madison Limestone is a massive, gray to buff limestone with some dolomite.

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