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Welcome to the Wyoming State Geological Survey

Interpreting the past, providing for the future

Groundwater Recharge Study

A recharge model used to estimate groundwater baseflow for the state of Wyoming is described in Open File Report 2016-8.


A new publication describing Wyoming's uranium resources, Uranium: Geology and Applications (PIC-46), is available for download.

Interactive Oil & Gas Map

The 2016 Oil and Gas Map of Wyoming is available online in an interactive format or as a traditional map.

Fort Union & Lance Formation Stratigraphy Report

A new report (RI-73) focuses on the strata deposited during the Laramide orogeny in the eastern Greater Green River Basin.

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State Fossil—Knightia

State Dinosaur—Triceratops

State Gemstone—Jade