Depth-to-Bedrock in Grant County, Wisconsin

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Depth-to-bedrock

Ben Gultch, a UW-Platteville geography major, used a GIS to develop a county-wide reconstruction of depth-to-bedrock based on well drilling records developed over the past five decades. This information was done by contract for the Wisconsin Geological and Natural History Survey and was used, among other things, to examine the potential history of the upper Mississippi River draining through the Great Lakes to the North Atlantic rather than through the Gulf of Mexico.

Funding source: Wisconsin Geological and Natural History Survey

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