1:1,000,000-scale hydrographic areas and flow systems for the Great Basin carbonate and alluvial aquifer system of Nevada, Utah, and parts of adjacent states
This dataset was created in support of a U.S. Geological Survey (USGS) study focusing 
on groundwater resources in the Great Basin carbonate and alluvial aquifer system (GBCAAS). 
The GBCAAS is a complex aquifer system comprised of both unconsolidated and bedrock 
formations covering an area of approximately 110,000 …