Yellow phenakite crystal

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A man and woman stand in tall grass at the edge of a river with trees on the side on a sunny day; they are looking across at a rock outcrop.
Three geoscientists looking at an outcrop wall in a quarry

What has WGNHS done lately?

Find out in our 2023 Year in Review

WGNHS News

  • Statewide map of Quaternary Geology of Wisconsin, 2025

    Unveiling the landscape: a new statewide map of the Quaternary Geology of Wisconsin

    March 24th, 2025 Mel Reusche, WGNHS Communications and outreach specialist Ridges and valleys, lakes and marshlands, rolling hills and lakeshore cliffs – the landscapes we recognize across Wisconsin are the result of fascinating and complex …

  • Scanned notebook page with a sketch of Wisconsin and the study region. Text reads "GRANT CO. BEDROCK. Mount Hope & Fennimore 7.5' Quads STATEMAP. 2020. 1:24000 scale mapping (1 cm = 787 ft= 240m). Applied focus of mapping: Bedrock geology/structure relationship to aquifer susceptibility to surface contaminants"

    Take note: making observations in the field

    Survey geologist Sarah Bremmer stands on the side of the road with a blaze-orange vest and a notebook. She is conducting fieldwork for a new geologic map and is in the process of thoroughly describing …

  • Groundwater educator Kevin aiding a workshop attendee with their groundwater sand tank model.

    Working with Wisconsin educators

    This blog post was written by UW-Madison undergraduate Shayla Barrera-Skibinski, who worked at WGNHS as a Social Media and Geology Assistant from 2022-2024. Includes June 2024 update by Mel Reusche. Where does our drinking water …

  • Map of Wisconsin overlaid by a colorful patchwork of county-scale geologic maps.

    Implementing the Geologic Mapping Database Standard

    This blog post was written by UW-Madison undergraduate Benji Johnson, who worked at WGNHS as a Social Media and Geology Assistant from 2021-2022. Includes May 2024 update from Pete Schoephoester and Mel Reusche. Caroline Rose, …

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