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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.

September 25, 2020, 2:02 pm

Did you know? There are parrotfish that "eat" coral rocks, and are crucial to protecting coral reefs. Watch this short Tedx Video About it: http://ow.ly/McC550BsZpt


As the sun rises over a quiet coral reef, one animal breaks the morning silence. Named for its vibrant scales and beak-like teeth, the parrotfish devours a particularly crunchy breakfast: rocks. Why would any creature take bites out of the seafloor? Mike Gil explores how these quirky and flashy ... See more

September 24, 2020, 5:02 pm

This #ThrowbackThursday, we feature #WGNHS's Grace Graham and Beloit College's Dr. Sue Swanson presenting about the Spring Survey of Wisconsin at Wednesday Night At The Lab in 2018! https://www.youtube.com/watch?v=WQ0izzOZ1es

This week (August 22) our speakers Sue Swanson from Beloit College and Grace Graham from the Wisconsin Geological Survey will chart out for us their project ...

September 23, 2020, 2:02 pm

This #WomenInSTEM Wednesday, we want to highlight Raven Baxter! A molecular biologist and science communicator finishing her PHD in science education, Raven strives to make science more fun and accessible especially for marginalized populations. She was recently featured in Forbes 40 under 40 in ... See more

Meet the influential people who are shaping this most unusual year.

September 21, 2020, 2:02 pm

This #Map Monday, we are highlighting #WGNHS's Door County Quaternary Map. Did you know? You can download most of #WGNHS' maps free on our website! You can get your own copy of this map here: http://ow.ly/c2Jk50BsWZb

September 18, 2020, 1:55 pm

Today we're highlighting an iconic landmark of Wisconsin geology, Van Hise Rock! At 1.7 billion years old, Van Hise Rock is composed of quartzite and phyllite that tells a fascinating geological history of folding and mountain-building events. Students and geologists from all over the Midwest ... See more

Wednesday, Alton Dooley put up a post about his visit to Van Hise Rock in Wisconsin. He included this photo of the famous rock with its upright (pretty much vertical) layers: Go read his description of the lithology for more detail, but essentially what you see here is an Oreo-like sandwich: pink ... See more

September 17, 2020, 5:20 pm

This #ThrowbackThursday, we're reminiscing about last fall when #WGNHS staff visited the Upham Woods Outdoor Learning Center during our staff field trip. Here, WGNHS staff are discussing and examining an outcrop during the field trip. Ah, memories!

📷: Sushmita Lotlikar


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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