A waterfall spilling over volcanic rocks in northern Minnesota, formally known as Gooseberry Falls.

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Who We Are

The Minnesota Geological Survey was established in 1872 by the State of Minnesota and is a research and service arm of the School of Earth and Environmental Sciences at the University of Minnesota.

The MGS collaborates with universities, government agencies, industry, and local communities to study Minnesota's geology, create geological maps, and conduct research.

Phone: 
612-626-2969 

Email: 
[email protected]

Office Address: 
2609 W Territorial Rd, St. Paul, MN 55114

Office Hours: 
Public office hours are every Thursday, 8am to 4pm or by appointment only. Business hours are Monday-Friday, 8am to 4pm.

Explore Minnesota Geology

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Recent Publications

Open-File Report

Understanding Bedrock Fracture Flow to Improve Groundwater Quality

Open-File Report

Cook County North-Central Bedrock Geology of Minnesota

Online Story Map

Pipestone County Geologic Atlas Story Map

County Atlas Series Map

C-59, Geologic Atlas of Pipestone County, Minnesota

Recent News

Drill cuttings sample of poorly sorted sandstone from a Coon Valley Member deposit in Washington County, Minnesota.

MGS Guidance on the Coon Valley Member

New guidance available from the MGS on recognizing the Coon Valley Member and differentiating it from the Jordan Sandstone.
Small thumbnails of all of the map plates associated with the Pipestone County Geologic Atlas.

Print-On-Demand Atlases Now Available

The MGS has started a partnership with OceanGrafix to provide print-on-demand County Geologic Atlases. Only the latest CGA, C-59 Pipestone Atlas, is currently available.
Rock hammer (for scale) sitting on a wave-rippled surface of an outcrop of pinkish-red Sioux Quartzite in Pipestone County, Minnesota.

Geologic Atlas of Pipestone County Published

The Geologic Atlas of Pipestone County, Minnesota was recently published by the Minnesota Geological Survey, including map plates, GIS datasets, and an online story map to provide web-based map data.
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Events and Seminars

Fall 2025 Seminar Schedule and Speakers

Past events...