Groundwater-level altitude contours, 1968, Paradise Valley, Humboldt County, Nevada (from U.S. Geological Survey Professional Paper 1409-F, figure 9)

This data set consists of polylines representing groundwater-level altitude contours, 1968, for Paradise Valley, Humboldt County, Nevada as published on figure 9 in...本数据集由表征1968年内华达州洪堡县天堂谷地下水位高程等值线的多段线（Polylines）组成，该内容刊载于……中的图9。