Geologic structure contours for the top of the Minnelusa Formation, Black Hills, South Dakota - USGS_ofr00471_mnlssurf

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 data set represents geologic structure contours for the Minnelusa Formation, Black Hills, South Dakota.