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Welcome to the Wyoming State Geological Survey

Interpreting the past, providing for the future


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.

Codell Sandstone Oil Production

A recent study examined Codell Sandstone oil production in the northern portion of the Denver Basin in Laramie County.


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





   
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