Contour lines representing the top of the Pennsylvanian-age units in western Sarpy County, Nebraska
This dataset is a shapefile of contours representing the estimated altitude of the top of the Pennsylvanian-age units in western Sarpy County. This dataset was developed as part of a cooperative study between the Papillion-Missouri River Natural Resources District (PMRNRD) and USGS which began in 2017.  The goal of …