Surficial hydrogeology data for the Black Hills area of western South Dakota was created by the U.S. Geological Survey as part of the Black Hills Hydrology Study initiated in 1990. The dataset underwent formal USGS review for topological consistency, attribute accuracy, and geographic extent. It represents hydrogeologic units across parts of Butte, Custer, Fall River, Lawrence, Meade, and Pennington counties.
Use Cases
- Map hydrogeologic unit boundaries and extents using polygon geometry features.
- Analyze groundwater distribution by associating unit polygons with aquifer type attributes.
- Assess water resource quantity by integrating unit data with well location and water level datasets.
- Study surface-groundwater interaction by overlaying hydrogeologic units with surface water features.
- Validate regional hydrological models using the reviewed topological consistency and attribute statistics.
Strengths
- Data underwent formal U.S. Geological Survey review standard for reports.
- Review process checked topological consistency, attribute frequencies, and geographic extent.
- Part of a long-term cooperative study initiated in 1990 involving multiple government agencies.
Limitations
- Dataset last updated in 1998, making it temporally stale for current conditions.
- Specific row count, column names, and sample data are unavailable for assessment.
- Geographic coverage is limited to six counties in western South Dakota.
Provenance
- Source
- U.S. Geological Survey (USGS), South Dakota Department of Environment and Natural Resources (DENR), West Dakota Water Development District.
- Collection Method
- Created as part of the Black Hills Hydrology Study, a cooperative long-term investigation.
- Time Range
- Study initiated in 1990; dataset reflects period up to 1998.
- Freshness
- 1998-06-09
- Geography
- Black Hills area of western South Dakota, including parts of Butte, Custer, Fall River, Lawrence, Meade, and Pennington counties.