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...本数据集为支持美国地质调查局（U.S. Geological Survey, USGS）一项聚焦大盆地碳酸盐岩与冲积含水层地下水资源的研究而编制。