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Welcome to the Wyoming State Geological Survey

Interpreting the past, providing for the future

Groundwater Salinity in Denver-Julesburg Basin

A new report examines the salinity of groundwaters that occur at depths of 5000 ft or less in the Denver-Julesburg structural basin where significant oil and gas activity has taken place in recent years.

Evaporite Karst Features

Report of Investigations No. 70 focuses on the occurrence of sinkholes and other evaporite related karst features in the southern Laramie Basin, including in and around the city of Laramie.

Paleontology Web Page

The WSGS has added a web page summarizing Wyoming's fossil record.

Wyoming's Lithium Resources Report

Report of Investigations No. 69 includes color photos and geologic maps of lithium locations throughout the state as well as files with lithium concentration data, locations and geologic settings for field and historical samples.

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State Fossil—Knightia

State Dinosaur—Triceratops

State Gemstone—Jade