Logo for Wisconsin Geological and Natural History Survey
Wisconsin's state fossil, Calymene celebra

The Wisconsin Geological and Natural History Survey (WGNHS) has been serving Wisconsin for over 100 years. Part of the University of Wisconsin-Madison Division of Extension, we provide objective scientific information about the geology, mineral resources, and water resources of Wisconsin.

May 3, 2021, 5:00 pm

Mark your calendars! This week is #DrinkingWaterWeek, and Water@UW-Madison's annual symposium is happening this Friday, May 7th! This free virtual event will take place from 9am to 12pm and focus on the theme of "Opportunities in a Changing World."

For more information and to register, head to ... See more

April 30, 2021, 4:00 pm

Congratulations to Asian Americans & Pacific Islanders in Geosciences (AAPIiG) on their launch this week! This new organization has several great-sounding informational events happening virtually throughout May — these events are open to the whole Earth sciences community, so be sure to check ... See more

“Hello World! This is Asian Americans and Pacific Islanders in Geosciences (AAPIiG)! We are a grassroots, member-driven organization committed to building a community that supports AAPIs within geosciences #AAPIGeosci. Our mission is to:”

April 29, 2021, 5:01 pm

This #ThrowbackThursday takes us back 100 years to the summer of 1921. As noted by the caption written on the back, the first photo depicts a "WGS (Wisconsin Geological Survey) Field Party." Between 1913 to 1930, WGNHS geologists surveyed northern Wisconsin for mineral land classification in search ... See more

April 28, 2021, 5:00 pm

Congratulations to David Mickelson, who was recently named Environmental Educator of the Year by the Superior Lobe Chapter of the Ice Age Trail Alliance! Mickelson is a UW-Madison Department of Geoscience professor emeritus and a frequent research associate of WGNHS.


BIRCHWOOD — David M. Mickelson, Emeritus Professor of Geoscience, Geological Engineering and Water Resource Management at University of Wisconsin—Madison has been selected by the Superior Lobe Chapter (SLC) as the

April 27, 2021, 8:00 pm

Attention, Madison-area college students! Are you interested in geoscience and #scicomm? WGNHS is hiring two student assistants to help with our social media! These positions may also have opportunities to help with field work and historical data.

Learn more and apply by May 6th: ... See more

April 27, 2021, 5:01 pm

Geologists stumbled upon suspiciously smooth stones in Wyoming that they now hypothesize may have been carried by migrating dinosaurs. According to their analysis, the stones likely originated in Wisconsin, where the researchers believe they were ingested by dinosaurs as gastroliths to help them ... See more

Some 150 million years ago, prehistoric plant-eaters may have carried the rocks in their bellies to aid digestion


To mitigate the spread of COVID-19 our staff are working remotely until further notice. Thanks for your patience in this difficult time. Stay well. Read more...

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