Geohydrology data for groundwater analysis in the Lake Superior Watershed

This child item contains geology and hydrogeology data used in the hydrogeologic characterization of the Lake Superior watershed and a shapefile of water budget zones for reporting water budget terms for Lake Superior. The geology data include shapefiles of bedrock units from the USGS Geologic map database (Horton, 2017) and surficial geology units from Soller and others (2012). A compilation of hydrogeologic properties (hydraulic conductivity and transmissivity) from a variety of studies in and around the Lake Superior basin and from a field study conducted in 2021 is included in a data table and the values are applied to the bedrock and surficial unit shapefiles. We also include here a zipped grid of simulated groundwater discharge to surface water (rivers and streams) extracted from the Zell and Sanford (2020) MODFLOW6 model of the shallow groundwater in the United States. The sources of data used in the compilation of properties also are included.