Hazards
June 23, 2021
HAZ-2021-01 Post-wildfire Hazards
Noting that we were getting hundreds of search hits on a previous version of an info-brochure that we originally published…
Publications
Geology
June 3, 2021
New GIS data and maps
For those of you who are subscribers to the CGS announcement list, we want to direct your attention to a…
Geology
April 26, 2021
Recent STATEMAP quadrangles
The CGS actively participates in the STATEMAP portion of…
Geology
April 15, 2021
A few new publications
For those of you who are recent subscribers to the CGS mailing list, we wanted to direct your attention to…
Hazards
February 8, 2021
The Snowy Torrents
Here in Colorado, avalanche season is not over yet, and it’s been another deadly one with 26 fatalities so far…
Geology
November 24, 2020
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…
Geology
September 9, 2020
Recent STATEMAP quadrangles
The CGS actively participates in the STATEMAP portion of…
Water
June 7, 2020
New Colorado Groundwater Atlas released
ON-010 Colorado Groundwater Atlas
Geology
April 24, 2020
OF-19-03 Geologic Map of the La Salle Quadrangle, Weld County, Colorado
As we continue to expand geological mapping coverage of Colorado, we recently uploaded another of our…
Geology
June 27, 2017
OF-16-02 Geologic Map of the Watkins Quadrangle, Arapahoe and Adams Counties, Colorado
We’ve just uploaded the next of our free STATEMAP quadrangle map products to…
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
Ed: We’re reprising this blog post because we find that this poster is getting more and more popular with folks—for…
Geology
April 12, 2017
OF-16-05 Geologic Map of the Longmont Quadrangle, Boulder and Weld Counties, Colorado
We just uploaded the most recent of our STATEMAP mapping products to…
Publications
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 on the…
Geology
January 31, 2017
MS-53 Colorado Stratigraphy Chart
A collaboration between the CGS and the Denver Museum of Nature & Science (DMNS) has resulted…
Hazards
January 23, 2017
Top-Ten paper at GSA
On May 25, 2014 the longest landslide in Colorado’s historical record occurred in west-central Colorado, six miles southeast of the small town of…
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…