Wells used in the creation of potentiometric surface maps for the Inyan Kara aquifer, Black Hills area, South Dakota.

The BHHS is a long-term investigation that was initiated in 1990 as a cooperative effort between the U.S. Geological Survey (USGS), the South Dakota Department of Environment and Natural Resources (DENR), and the West Dakota Water Development District. West Dakota represents various local and county cooperators.

The purpose of the study is to assess the quantity, quality, and distribution of surface and ground water in the Black Hills area of western South Dakota (Driscoll, 1992). The study area includes parts of Butte, Custer, Fall River, Lawrence, Meade, and Pennington counties in South Dakota. This dataset describes wells completed in the Inyan Kara Group that were used to create a potentiometric surface for the Inyan Kara aquifer.