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Welcome to the Wyoming State Geological Survey

Interpreting the past, providing for the future

Seminoe State Park Geology

An Information Pamphlet, IP-14, describing the geology and hydrogeology found at Seminoe State Park is now available.

Cheyenne Fossil Display

The tapiromorph fossil is being displayed at the WY State Museum in Cheyenne this winter.
ACC bentonite Mill

Mines and Minerals Map

A new online interactive Mines and Minerals Map allows for research and understaning of Wyoming resources.

Groundwater Salinity Report

A new report examines the salinity of groundwater in the Powder River Basin that may be suited to industrial uses.

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

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Wyoming's gemstones
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