August 23, 2023
OF-21-02 Geologic Map of the Valley View School Quadrangle, Weld County, Colorado
The purpose of this publication is to describe the geology, geologic resources, and geologic hazards of this 7.5-minute quadrangle. It…
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August 22, 2023
OF-22-14D Digital Compilation of Surficial and Bedrock Geology of the Grand Junction 30×60 Minute Quadrangle, Delta, Garfield and Mesa Counties, Colorado (Data)
This 30×60 minute map, provided as a digital GIS dataset only, is a 2022 compilation of the original 1989 USGS…
August 16, 2023
Andrew Schmidt (Grand Junction)
Geology
August 9, 2023
Cumbres and Toltec Geology Train
This year’s September 10th Geology Train — a very special and popular opportunity to enjoy…
Hazards
August 7, 2023
Wildfires 101
Although the US wildfire season this year doesn’t seem quite as intense as prior ones, we thought this excellent primer…
July 31, 2023
James McCalpin (Crestone)
James McCalpin…
June 15, 2023
Dalton Seymour
May 15, 2023
Erick Bora
Student Assistant…
May 3, 2023
Enrique Chon
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…
April 7, 2023
OF-19-01 Geology and Groundwater Resources of La Plata County, Colorado
This report extends our county-based geology and groundwater series and provides a regional overview with the 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…
March 29, 2023
Jerry Boak
March 24, 2023
Scott Lundstrom (Durango)
March 24, 2023
Ralph Shroba
March 24, 2023
Karen Houck
March 15, 2023
Debbie Cockburn
March 15, 2023
Mary Gillam (Durango)
March 15, 2023
Jay Temple (Westcliffe)
March 15, 2023
Kenneth Swift Bird
March 15, 2023
Emma Blair
March 15, 2023
Alexander Marr
March 15, 2023
Alex Papp
March 15, 2023
Emily Perman
March 15, 2023
Declan Knies
March 14, 2023
OF-20-04 Geologic Map of the Cedaredge Quadrangle, Delta County, Colorado
The purpose of this publication is to describe the geology, geologic resources, and geologic hazards of this 7.5-minute quadrangle. It…
March 8, 2023
IS-85 Colorado Mineral and Energy Industry Activities 2021-2022
The next edition of our annual Colorado Mineral and Energy Industry Activities report is ready for download. This edition is…
March 8, 2023
OF-22-02 Geologic Map of the Brighton Quadrangle, Adams County, Colorado
The purpose of this publication is to describe the geology, geologic resources, and geologic hazards of this 7.5-minute quadrangle. It…
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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…
February 21, 2023
OF-22-09 Geochronology and Geomorphic Mapping to Estimate Debris-flow Depositional Ages and Recurrence Intervals Along State Highways 145 and 62, San Miguel County, Colorado
Debris-flows are a common problem in the mountainous areas of the state, and this project—requested and funded by the…