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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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Central Sands nitrate and neonicotinoids database
The Central Sands nitrate and neonicotinoid database consists of over 100,000 measurements of nitrate and neonicotinoid concentrations in groundwater from wells across Adams, Juneau, Marquette, Portage, Waushara, and Wood counties collected between 1953 and 2021. These counties comprise the Central Sands Groundwater County Collaborative (GSGCC), which... -
Elevation contours of the Precambrian surface of south-central Wisconsin
Elevation contour data and an accompanying report provide an updated interpretation of the elevation of the top of Precambrian bedrock in south-central Wisconsin. The elevation surface was developed from geologic and geophysical data, and provides new detail on the entrenched bedrock valleys that were incised into the north and south ranges of the Baraboo...-
Elevation contours of the Precambrian surface of south-central Wisconsin [dataset 1]
2022
GIS Data: File geodatabase, metadata
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