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Welcome to the Wyoming State Geological Survey

Interpreting the past, providing for the future

Groundwater Salinity Report

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

Rare Mammal Fossil Discovered

A tapiromorph fossil discovered in the Green River Formation may be the first of its kind.

Silica Sand Deposits Report

A new report evaluates silica-rich sand deposits found in bedrock, dune, and alluvial fan exposures.

Correlation Chart Of Upper Cretaceous

Latest statewide stratigraphic chart correlating Upper Cretaceous strata to Western Interior biostratigraphy & chronostratigraphic data.

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

Geospatial Data
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