Geologic Mapping in South Dakota at 1:250,000 scale
Geologic maps are the foundation for many types of natural resources-related maps and have a wide range of uses. Each map covers a large area and can be used for regional and statewide planning. These maps are beneficial in making land use decisions such as determining the suitability of an area for development, planning major construction projects, identifying shallow sources of ground water, and identifying potential mineral resource deposits.
Status Map (Click map for full pdf)