OF-22-16D Digital Compilation of Surficial and Bedrock Geology of the Montrose 30x60 Minute Quadrangle General, Geology, Publications 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 previously-published 30×60-minute geologic map quadrangles as GIS data packages. In addition to the information the original 1:100,000-scale maps, data from more recent 1:24,000-scale (7.5 minute) CGS quadrangle mapping was merged…
Limestone speleothems (var. stalactite) hang from the ceiling of Glenwood Caverns General, Geology 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 Springs, Colorado, between June 11-15. The meeting is open to AASG members and its associates, as well as various government and scientific agencies. >> REGISTRATION IS NOW CLOSED…
Earthquake damage: significant cracking and displacement in adobe wall of garage Geology, Hazards August 16, 2022 The Great ShakeOut The origins of The Great ShakeOut project lie, unsurprisingly, in Southern California, one of the more seismically active regions of the country. In 2008 a group of experts collaboratively modeled what might happen when a major earthquake hits the Southern California region. The detailed report, titled…
Pierre Shale (gray) exposed along St. Vrain Creek in Weld County General, Geology, Publications March 16, 2022 Recent reports published OF-20-11 Alkaline Complexes of the Wet Mountains Area, Colorado: A Geological Summary, Bibliography, and Data Compilation of Critical Mineral Laboratory Results — With renewed interest in critical minerals driven by global demand and consequent shortages, the CGS funded a compilation of historical sample results and a…
Detail from one of over 600 Denver Basin geophysical and lithological logs included in the ON-OF-78-08M digitization project. Photo credit: Colorado Geological Survey. Geology, Minerals, Publications 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 handful of new maps and recently digitized analog data sets that we haven’t otherwise publicized. These include several important online GIS maps and downloadable data packages:…
Looking northwest to Hells Kitchen from Ekkert General, Geology, Publications April 26, 2021 Recent STATEMAP quadrangles The CGS actively participates in the STATEMAP portion of the US Geological Survey’s National Cooperative Geologic Mapping Program (NCGMP), a nation-wide effort to generate comprehensive…
The classic afternoon thunderstorm forming over South Park can make field work ... complicated! Antero Reservoir Northeast quadrangle General, Geology, Publications September 9, 2020 Recent STATEMAP quadrangles The CGS actively participates in the STATEMAP portion of the US Geological Survey’s National Cooperative Geologic Mapping Program (NCGMP), a nation-wide effort to generate comprehensive…
Hazards March 13, 2013 The Science of Sinkholes This video, from the U.S. Geological Survey, explores the geological factors behind sinkholes and the related science. Narrated by Randall Orndorff, the Director of the USGS Eastern Geology and Paleoclimate Science Center.