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Federal
Data Release for Surficial Geology and Quaternary Tectonics of the Madison Valley and Fault Zone, Madison, Gallatin, and Beaverhead Counties, southwest Montana
Department of the Interior —
The NNW-striking Madison fault zone is approximately 95 km in length, lying at the confluence of the northeast Basin and Range province and the Yellowstone tectonic... -
Federal
Hydrogeologic Areas of the Southwest Principal Aquifer (SWPA) study
Department of the Interior —
This raster dataset represents the boundaries of the hydrogeologic areas of the Southwest Principal Aquifer (SWPA) study of the National Water Quality Assessment... -
Federal
Alluvial basin statistics of the Southwest Principal Aquifers (SWPA) study.
Department of the Interior —
SWPA_alvbsn is a vector dataset of alluvial-fill basin statistics for the Southwest United States. Statistics for each basin include physical details such as area,...