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Welcome to the Wyoming State Geological Survey

Interpreting the past, providing for the future

Great Divide and Washakie Basin Coal

A report about coal in the Fort Union Formation of south-central Wyoming has been published.

Critical Minerals

A Critical Minerals web page and a 2019 Summary Report have been released by the WSGS.

Online Geologic Hazards Map

A new interactive Geologic Hazards Map allows for research of landslides, earthquakes, windblown deposits, expansive soils and faults.

Interactive Maps

Link to interactive Groundwater Atlas Link to interactive Oil and Gas map Link to interactive Geochronology map Link to Interactive Geologic Map index Link to Interactive Mines & Minerals Map Link to Interactive Hazards Map

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Wyoming's gemstones
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