Text Size  A  A   Twitter Facebook YouTube Instagram Sign Up For Email Updates

Welcome to the Wyoming State Geological Survey

Interpreting the past, providing for the future

New Geologic Maps

  1. Ervay Basin 24K, bedrock
  2. Ervay Basin SW 24K, bedrock
  3. Dixon 24K, bedrock
  4. Jackson 100K, surficial
  5. Jeffrey City 24K, bedrock


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.

Sign up for WSGS news
Report an earthquake
Report a landslide

State Fossil—Knightia

State Dinosaur—Triceratops

State Gemstone—Jade