1:500,000-scale hydrogeologic units and estimates of specific yield, eastern part of middle Carson River basin, Nevada (from U.S. Geological Survey Scientific Investigations Report 2011-5055, figure 3)

This dataset consists of 1:500,000-scale polygons of geologic units grouped into hydrogeologic units and estimated specific yield ranges for the easternmost 4–5 miles...本数据集包含比例尺为1:500,000的地质单元（geologic units）多边形要素，该类要素被归类为水文地质单元（hydrogeologic units），同时附带该区域最东端4至5英里范围内的估算给水度（specific yield）范围。