Skyline Drive
Skyline Drive

General, Geology

Fremont County geologic attractions

Fremont County, two hours south of Denver, is located on the south-central Front Range of Colorado in a geological region called the Cañon City Embayment. Its geological environment and history is incredibly diverse as are its paleontological treasures. It is the only county in Colorado featuring two…

A uranium-rich zone in a sandstone of the Morrison Formation
A uranium-rich zone in a sandstone of the Morrison Formation, Carnation Mine, San Miguel County, CO, January 2007. Photo credit: Chris Carroll (CGS).

Energy, Minerals

Colorado’s Uranium Deposits

[Ed: this document, written in 2011 by Jim Burnell, Ph.D., P.G. (former Senior Minerals Geologist, Colorado Geological Survey), provides an excellent narrative on the sources of uranium deposits on the Western Slope of Colorado. However, it’s not the whole story—there is fascinating new science research implicating biological/organismic activity underground that…