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The Colorado Mineral Belt (CMB) is an area of ore deposits from the La Plata Mountains in Southwestern Colorado to near the middle of the state at Boulder, Colorado, and from which over 25 million troy ounces (778 t) of gold were extracted beginning in 1858. [2]
Colorado Mineral Belt. Colorado mining history is a chronology of precious metal mining (e.g., mining for gold and silver), fuel extraction (e.g., mining for uranium and coal), building material quarrying (iron, gypsum, marble), and rare earth mining (titanium, tellurium).
Scientists from around the world come to Colorado to study the minerals of this region. Because the granite covers a large portion of the Colorado Front Range, there are good mineral collecting areas scattered all over the Pikes Peak region. The collecting localities range from near Colorado Springs on the south to just west of Denver on the north.
Only one Colorado mine continues to produce gold, the Cripple Creek & Victor Gold Mine at Victor near Colorado Springs, an open-pit heap leach operation owned by Newmont Corporation, which produced 322,000 troy ounces of gold in 2019 and reported 3.45 million troy ounces of Proven and Probable Reserves as at December 31, 2019. [29] [30]
The Climax mine, located in Climax, Colorado, United States, is a major molybdenum mine in Lake and Summit counties, Colorado. Shipments from the mine began in 1915. At its highest output, the Climax mine was the largest molybdenum mine in the world, and for many years it supplied three quarters of the world's supply of molybdenum. After a long ...
The Colorado Plateau is a physiographic and desert region of the Intermontane Plateaus, ... Within these rocks are abundant mineral resources, including uranium, coal ...
The Amethyst Mine, near Creede, Colorado Remains of an abandoned mine near Silverton, Colorado, in July 2020. Beginning in 1889, Creede, Colorado was the site of another big silver boom. The first discovery was made at the Alpha mine in 1869, but the silver could not be extracted at a profit from the complex ores.
1992 – The Colorado Geological Survey is placed under the newly formed Division of Minerals and Geology, a regulatory agency. 2005 – The legislature re-establishes the Colorado Geological Survey as a separate Division in the Department of Natural Resources. 2013 – CGS is transferred to the Colorado School of Mines.