Minerals
April 13, 2023
IS-85 Colorado Mineral and Energy Industry Activities 2021-2022
The current annual Colorado Mineral and Energy Industry Activities report for 2021-22 is now available. Following up on…
General
Geology
March 30, 2023
New Colorado 30×60 minute quadrangle datasets
Underwritten with special supplemental funding though the US Geological Survey (USGS) STATEMAP Program, we digitized, re-compiled, and quality-controlled several…
admin
March 1, 2023
115th Annual AASG Meeting, Glenwood Springs, Colorado
The 2023 Association of American State Geologists meeting—hosted by the Colorado Geological Survey—takes place in Glenwood…
Hazards
September 23, 2022
The Great Colorado ShakeOut 2022
It’s coming up in less than four weeks! The Great Colorado ShakeOut is a public earthquake drill that takes place…
admin
September 12, 2022
Introducing our new Director
Matt Morgan, Colorado Geological Survey, Director and Colorado State Geologist, Red Rocks Park, Morrison,…
General
July 27, 2022
Earth Explorations vlog/podcasts
Dr. Christian Shorey—Teaching Professor of Environmental Science and Climatology in the Geology and Geological Engineering Department…
Geology
May 19, 2022
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…
Geology
April 8, 2022
NASA Earth Observatory
One of our favorite online feeds is from the NASA Earth Observatory along with their…
Geology
March 15, 2022
Recent reports published
OF-20-11 Alkaline Complexes of the Wet Mountains Area, Colorado: A Geological Summary, Bibliography, and Data Compilation…
General
March 9, 2022
Tale of the Bear Creek Meteorite, Jefferson County, Colorado
By Matthew Morgan, Deputy Director, Colorado Geological Survey and Gary Curtiss, Lakewood geologist and meteorite collector A…
General
February 21, 2022
Cumbres and Toltec Geology Train
We just found out about this year’s Cumbres & Toltec Geology Train adventures in southwest Colorado and northwest New Mexico.
Geology
April 26, 2021
Recent STATEMAP quadrangles
The CGS actively participates in the STATEMAP portion of…
Geology
September 9, 2020
Recent STATEMAP quadrangles
The CGS actively participates in the STATEMAP portion of…
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!
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
May 16, 2017
AASG 2017 John C. Frye Memorial Award for CGS publication
The Association of American State Geologists announced that their annual John C.
General
May 15, 2017
OF-16-03 Colorado Rocky Mountain Front Profiles
(NOTE: We’ are currently rolling over our physical publications sales to Amazon, and we haven’t yet gotten this great poster…
General
May 13, 2017
Welcome to the CGS RockTalk blog
We’ve decided to revive one of our most popular print publications — RockTalk — as a blog so that…
General
February 28, 2008
The biggest, the best, the first, and the most diverse…
We have a free 8.5- x 11-inch (pdf) geologic map of Colorado containing Geo-Whizology of Colorado…
General
March 4, 2005
Dr. Cílek on the Bohemian karst
Dr. Cílek, the Director of the Czech Republic’s Academy of Sciences Institute of Geology delivers a…
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…
General
March 28, 1907
Concerns about the new survey
Regarding the Colorado Geological Survey (an article appearing in the Mining Reporter, March 1907): We note that one of our…