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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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Wisconsin's Waters [2011-2016]
The Survey's annual poster calendar featuring Wisconsin scenery. The 2016 image showcases the Wisconsin River from the Ferry Bluff overlook.-
Wisconsin's Waters 2016
2015
Poster: 22 in x 28 in, features Wisconsin River from Ferry Bluff overlook
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The Ice Age Geology of Devils Lake State Park
Devils Lake State Park is a place of striking geologic contrasts, where some of the oldest rock exposed in southern Wisconsin lies next to some of the youngest geologic materials in the state. The purple rock (called Baraboo quartzite) in the walls of Devils Lake gorge is more than 1.7 billion years old; the glacially deposited ridges that block both ends...-
The Ice Age Geology of Devils Lake State Park
1990
Report: 28 p. + map (18 in x 24 in, scale 1:24,000)
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