Geology
October 1, 2000
A Dash with Dinosaurs
In the next months, we will be sharing some unpublished field trip guides that we have made over the…
Search
Much of the CGS website is under heavy re-construction and will be for some time. The Publications area is working normally, but there is a lot of content from our original site that was in desperate need of updating. Please bear with us as we gather new information and rewrite hundreds of pages of material, gather and properly caption high-resolution images and otherwise bring you some very cool new and archival material never before seen! Stay in touch by subscribing to the >RockTalk< blog where we will announce new items periodically.
March 27, 2020
Asha Mahatma
Hazards
March 20, 2020
Trenching the Cheraw Fault in Southeastern Colorado
One of the missions of the CGS is to better understand the various geological risks that face the residents of…
February 21, 2020
IS-82 Colorado Mineral and Energy Industry Activities 2018-2019
The next edition of our annual Colorado Mineral and Energy Industry Activities report is ready for download. This edition is…
Energy
February 18, 2020
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…
Geology
February 10, 2020
DMNS Meteorite Collection
The Meteorite Collection of the Denver Museum of Nature & Science publication
February 6, 2020
OF-19-03 Geologic Map of the La Salle Quadrangle, Weld County, Colorado
The purpose of this map is to describe the geology, mineral and ground-water resource potential, and geologic hazards of this…
Hazards
January 24, 2020
CEHMC
CEHMC The Colorado Earthquake Hazard Mitigation Council (CEHMC) is a multi-disciplinary organization that is developing a better understanding of earthquake…
General
January 10, 2020
Welcome to the final CGS/RockTalk web iteration
If you want to find out what's happening with the new CGS site, read here! Apologies for the incompleteness, it will improve on a daily basis, we promise!
January 8, 2020
OF-18-03 Geologic Map of the Lands End Quadrangle, Mesa County, Colorado
Extending previous CGS mapping efforts on the Grand Mesa in the Western Slope region the state, this publication describes the…
General
December 13, 2019
Quote: Robert Frost, geohazards expert
Not only sands and gravels Were once more on their travels, But gulping muddy gallons…
Hazards
December 12, 2019
Paleoseismology
Paleoseismology We study the past to understand the present; we understand the present to guide the future. — William…
Publications
December 11, 2019
ON-010 Colorado Groundwater Atlas Bibliography
ON-010 Bibliography Intro Bibliography A-J Bibliography K-Z Groundwater Glossary This bibliography includes a majority of references used in the 2003…
Geology
December 4, 2019
For Rockhounds
For Rockhounds Much of the CGS website is under heavy re-construction and will be…
Hazards
November 21, 2019
Corrosive Soils
Corrosive Soils Much of the CGS website is under heavy re-construction and will be…
November 20, 2019
OF-19-13 Storm Floods on Trout Creek, Chaffee County, Colorado
This publication from Mines Geology Professor Emeritus Keenan Lee is an exploration of flooding events within the Trout Creek watershed…
Geology
November 15, 2019
Faults and Structures
Faults and Structures Much of the CGS website is under heavy re-construction and will…
General
November 6, 2019
History of the Survey
History of the CGS Since 1910, the Colorado Geological Survey has brought the best of Colorado geoscience to you,…
November 5, 2019
MI-98 Catastrophic Glacial Outburst Floods on the Upper Arkansas River, Colorado
This publication from Mines Geology Professor Emeritus Keenan Lee is an in-depth exploration that illustrates one facet of the dramatic…
Hazards
October 31, 2019
Seismometer Network
Seismometer Network Much of the CGS website is under heavy re-construction and will be…
Hazards
October 30, 2019
HAZUS
HAZUS Hazus Much of the CGS website is under heavy re-construction and will be…
Geology
October 28, 2019
Gemstones
Gemstones Much of the CGS website is under heavy re-construction and will be for…
Minerals
October 28, 2019
Rare Earth Materials
Rare Earth Materials Much of the CGS website is under heavy re-construction and will…
Minerals
October 28, 2019
Strategic and Critical Minerals
Strategic and Critical Minerals Much of the CGS website is under heavy re-construction and…
admin
October 24, 2019
Page Not Found
Page Not Found The publication, posting, or page you were looking for wasn’t found ……
General
October 21, 2019
About
About the CGS Much of the CGS website is under heavy re-construction and will…
General
October 21, 2019
GIS Data and Web Map Portal
GIS Data :: Web Maps Much of the CGS website is under heavy re-construction…
Water
October 21, 2019
Naturally Degraded Water
Naturally Degraded Water Much of the CGS website is under heavy re-construction and will…
Water
October 21, 2019
Groundwater
Groundwater ON-010 Colorado Groundwater Atlas Much of the…
Water
October 21, 2019
Surface Water Quality
Surface Water Quality Much of the CGS website is under heavy re-construction and will…
Water
October 21, 2019
Hot Springs
Hot Springs Much of the CGS website is under heavy re-construction and will be…