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Quaternary Geology of Wisconsin
This 1:500,000 scale map of Wisconsin depicts sediment deposited by glaciers, streams, wind, and other processes during the Quaternary Period (2.58 million years ago to present). The map was made by compiling detailed Quaternary mapping and lithostratigraphic studies previously conducted by the WGNHS to generate consistent statewide Quaternary map units....-
GIS Data for the Quaternary Geology of Wisconsin [dataset 1]
2025
GIS Data: GeMS file geodatabase, GeoPackage, shapefiles, metadata