mining

Golden Rocks: The Geology and Mining History of Golden, Colorado

We’ve received the go ahead to help distribute this marvelous (and FREE!) 100+ page digital publication from the talented…

Case Study: Lykins Formation

Small but significant areas of Colorado are underlain by bedrock that is composed of evaporative…

Recent reports published

OF-20-11 Alkaline Complexes of the Wet Mountains Area, Colorado: A Geological Summary, Bibliography, and Data Compilation…

IS-84 Colorado Mineral and Energy Industry Activities 2020-2021 – bibliography

Every year, the CGS Minerals section prepares a comprehensive survey of the mineral and energy industries across the state. The…

Re-introducing: Historic Metal Mining Districts

As the reconstruction of our website continues, we recently redeployed a popular package of information that was compiled and made…

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…

Creede: The Last Boom Town

This RMPBS/Colorado Experience video explores the vibrant mining history of Creede, Colorado.

Geology of Uranium Deposits in Colorado

Uranium is a widespread and ubiquitous element. It has a crustal abundance of 2.8 parts per million, slightly more than…

IS-79 Colorado Mineral and Energy Industry Activities 2015-16

The current annual Colorado Mineral and Energy Industry Activities report 2015-16 is now available. Following up on the…

Mine Subsidence Hazards in Colorado

This video, produced by the CGS in 2011, examines the significant geo-hazards related to the long history of underground coal…

Case Study: mine subsidence, CSM

For decades, the west side of the Colorado School of Mines (CSM) main campus had subsidence issues related to…

Lake Peigneur sinkhole disaster

Mines and Minerals: the early Survey

While a number of brilliant men have in past years held the office of Colorado State Geologist, it is no…