Large 700-series Caterpillar mine hauling trucks at the Holcim Portland Cement plant in Florence Energy, General, Minerals, Publications 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 the 2020-21 report, this report is based on 2021 production data with additional reported news from 2022. It provides a comprehensive snapshot of Colorado’s mineral resource…
On the Cumbres & Toltec Scenic Railroad Geology Train trip General, Geology 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. Because of the high demand in former years, there are two dates this year, 19 June and 17 September 2022. They’ll both…
Mount Garfield from Interstate-70 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!
Geology March 24, 2018 A Brief History of Colorado Through Time (Geology of Colorado) One of the many fascinating videos from our geo-friends up the road at University of Colorado-Boulder: A Brief History of Colorado Through Time (Geology of Colorado). The Interactive Geology Project was formed in 2002 by professor Paul Weimer…
Headscarp of an ongoing landslide in the now-shuttered Pikeview Quarry in El Paso County 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 we can continue to bring you interesting, informative, and timely postings related to our mission. This year, 2017, will see 110 years since the founding of the CGS. The first…
IS-79 Colorado Mineral and Energy Industry Activities 2015-2016 Energy, Minerals, Publications February 18, 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 2014 report, this report, based on 2015 production data, sketches a comprehensive overview of Colorado’s mineral resource production. Of note is the fact that total value of…