Skyline Drive General, 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 called the Cañon City Embayment. Its geological environment and history is incredibly diverse as are its paleontological treasures. It is the only county in Colorado featuring two…
Interstate-70 running through Glenwood Canyon is one of the most spectacular segments of the US Interstate system. Photo credit: Vince Matthews for the CGS. Geology March 16, 2022 The Glenwood Canyon Highway This recent RMPBS/Colorado Experience video traces the history of transportation through Colorado’s spectacular Glenwood Canyon. It focuses on the complex construction process of Interstate-70 that sought to harmonize with the geology and the landscape. Initially fraught with controversy and opposition, the Glenwood Canyon Highway is one…
A 3610 g slice of the Bear Creek meteorite being held for scale that was formerly in the Jurgen Nauber Meteorite Collection (JNMC) in Zurich General, Geology 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 The prior discovery by George R. Morrison of the Bear Creek iron meteorite was confirmed on April 18, 1866 when Morrison and James L. Wilson returned to a location approximately 48 km (30…
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…
Mining town, Eureka, San Juan County, Colorado, circa 1900. Photo credit: William Henry Jackson. CGS media archive. Geology, Minerals, Publications 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 available by former CGS Senior Minerals Geologist, Mr. James Burnell, during the 2010s. Referencing a variety of sources, Burnell researched most of the major districts around the state. Each district…
Downtown Creede in 2010. Photo credit: Vince Matthews for the CGS. Geology, Minerals October 16, 2019 Creede: The Last Boom Town This RMPBS/Colorado Experience video explores the vibrant mining history of Creede, Colorado. In so many ways, the story of Colorado is the story of mining. The town of Creede in the south-central Rockies of Colorado stands as one of the last mining…
Historical postcard "Prospecting in Leadville" General, Minerals 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 disparagement to them to say that their work produced few tangible or lasting results. The fault was the state’s and her legislatures’ previous to that of 1907. Limited by niggardly…
Boulder oil field, 1915. Photo credit: C. L. McClure and the Denver Public Library. General, Geology March 29, 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 contemporaries, in recently commenting on the University bill creating a State Geological Survey of Colorado — the bill reported favorably on by the joint Senate and House mining committee —…
HAZUS simulation: 1882 Earthquake Geology, Hazards November 8, 1882 Case Study: The Big One It has been 140 years since “The Big One”: Colorado’s largest historic earthquake: November 7, 1882 – Magnitude 6.6. On Tuesday, November 7, 1882 at about 6:30 p.m. local Denver time, a moderately strong earthquake shook much of Colorado and parts of southern Wyoming and northeastern Utah. The following quote…