Data on wells and test holes in this data set were used to identify elevations for the top of the Madison Limestone for the creation of a structure-contour map. West Dakota represents various local and county cooperators. The study area includes parts of Butte, Custer, Fall River, Lawrence, Meade, and Pennington counties in South Dakota. Information such as elevations of geologic formation tops, and hole depth were taken from well logs on-file at the U.S. Geological Survey office in Rapid City, South Dakota. 4.The locations and attributes were verified.
Point features present.
Although these data have been used by the U.S. Geological Survey, U.S. Department of the Interior, no warranty expressed or implied is made by the U.S. Geological Survey as to the accuracy of the data. The act of distribution shall not constitute any such warranty, and no responsibility is assumed by the U.S. Geological Survey in the use of this data, software, or related materials.