Energy
August 14, 2018
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…
mining
General
February 17, 2017
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…
Hazards
June 15, 2011
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…
Hazards
November 20, 1980
Lake Peigneur sinkhole disaster
General
March 11, 1909
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…