Describes the types of rocks found throughout the state by age and explains how to interpret the accompanying cross section.

Geoscience data from the Wisconsin Geological Survey
This interactive map shows locations of site data for our collections of geophysical logs and Quaternary core.

Geophysical, Quaternary Core, and Rock Core Data is available from across Wisconsin.

Wisconsin's Meteorites dataset collection of all of the known locations of meteorites, plus known craters formed from larger meteorites, including the Rock Elm Disturbance found in West Central Wisconsin.

The Wisconsin Geological and Natural History Survey (WGNHS) has been serving Wisconsin for over 125 years. Part of the Division of Extension at the University of Wisconsin–Madison, WGNHS provides objective scientific information about the geology, mineral resources, and water resources of Wisconsin. We conduct research, map Wisconsin’s geology, and share information through our publications and outreach.

This is the link to the Publications Catalog that includes Wisconsin Data sets and maps for: Bedrock Geology, Groundwater, Surficial Geology, Rocks and Minerals, Soils, Precambrian Bedrock, Surface Water, Metallic Minerals, Topography, Nonmetallic Minerals, Climate and Weather, and Frac Sand.

The Badger State is home to a wide variety of rocks and minerals, some of which you may find familiar and others you may not recognize. In this interactive guide, the Wisconsin Geological and Natural History Survey takes you on a journey through the state, exploring our most important rocks and minerals.