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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.

January 22, 2021, 6:01 pm

This #FossilFriday takes us back 3.5 billion years to some of the first forms of life on Earth! Known as #stromatolites, these fossils formed from mounded layers of sediment and cyanobacteria that photosynthesized oxygen in ancient oceans. As those oceans became oxygen-saturated, the oxygen then ... See more

January 21, 2021, 6:01 pm

Geologists can gather amazing details about the past from the rock record, even finding remnants of ancient lightning! When lightning strikes mountaintops, it can often leave behind a glassy crust called a fulgurite. In this #GeoNews article from Science Magazine, geoscientists have begun using ... See more

New geological dating system could show when glaciers retreated

January 20, 2021, 6:01 pm

This #PenguinAwarenessDay takes us to Antarctica, home of the Thwaites Glacier! Named after former University of Wisconsin-Madison professor Fredrik T. Thwaites, the massive glacier currently accounts for about 4% of global sea-level rise. You can learn more about the glacier and its climate ... See more

January 19, 2021, 7:01 pm

Have you ever wanted to find #fossils in Wisconsin? The best areas to start looking are in the eastern and southern parts of Wisconsin where Paleozoic fossiliferous rocks are located. On our website we have descriptions and locations of outcrops that have been noted to have fossils. Even the gravel ... See more

January 19, 2021, 2:30 pm

WGNHS is hiring! We're looking for a talented #GIS specialist/cartographer to help with #mapping and research projects at the Survey. This is a full-time position. Application deadline is Feb. 8th.

Link to full info and to apply: http://ow.ly/WyS850Da3ew

Find jobs at University of Wisconsin–Madison

January 15, 2021, 5:05 pm

New year, new publication! This new WGNHS report documents a one-year study of six wetlands in #DoorCounty. Door County has numerous wetlands, many of which are fed by #groundwater. The research team, led by hydrogeologist Dave Hart, recorded water quality and quantity discharging to each wetland ... See more


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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