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The Driftless Area: The extent of unglaciated and similar terrains in Wisconsin, Illinois, Iowa, and Minnesota
The Driftless Area of southwestern Wisconsin and northwestern Illinois got its name from the lack of glacial sediment ("drift") covering the landscape. The surficial geology and topography of the Driftless Area are thus distinct from the surrounding region where multiple phases of glaciation left their mark. This pamphlet, a collaborative effort between...-
GIS data for the outline of the Driftless Area and similar terrains in Wisconsin, Illinois, Iowa, and Minnesota
2023
GIS Data: shapefile, metadata
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Page-sized and web-version maps of the Driftless Area and similar terrains in Wisconsin, Illinois, Iowa, and Minnesota
2023
Map: 1 p. (8.5 in x 11 in)
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Preliminary Quaternary Geology of Columbia, Green Lake, and Marquette Counties, Wisconsin
This open-file report contains a map (PDF), GIS data (shapefiles), and metadata for Columbia, Green Lake, and Marquette Counties in central Wisconsin.-
Preliminary Quaternary Geology of Columbia, Green Lake, and Marquette Counties, Wisconsin [plate 1]
2015
Map: 35 in x 34 in, scale 1:100,000
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Preliminary Quaternary Geology of Columbia, Green Lake, and Marquette Counties, Wisconsin [GIS data]
2015
GIS Data: Shapefiles
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