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Wisconsin Geological and Natural History Survey

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Bass, Addison

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Hot off the WGNHS press

Check out the newest maps, reports, and other publications.

Generalized Map of the Quaternary Geology of Wisconsin
October 16, 2026
Wisconsin Groundwater-Level Monitoring Network Improvements, 2024-2026
October 16, 2026
Updated version of Depth to Silurian Bedrock in Eastern Wisconsin
September 30, 2026

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3817 Mineral Point Rd.
Madison, WI 53705-5100
Email: info@wgnhs.wisc.edu
Phone: (608) 262-1705

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