CGS Publications. Denver, CO: Colorado Geological Survey, Division of Minerals and Geology, Department of Natural Resources, 2001. https://doi.org/10.58783/cgs.rs40.mitw1961. Colorado And Wyoming Gold Mines: 2019 Actual And 2020 Forecast For example, as summarized from RS-42 Geology and Mineral Resources of Lake County, Colorado, when the gold rush expanded throughout Colorado, mining in the Leadville District began with the discovery of placer gold in California Gulch in the early 1860s. Denver, CO: Colorado Geological Survey, Department of Natural Resources, 1981. https://doi.org/10.58783/cgs.ms17.aytd4749. Cappa, James A., and Harry TerBest. This area accounted for about 77% of the total uranium production in the state. The kimberlites near the . Davis, Mark W., and Randall K. Streufert. Open File Report. OF-99-16 Evaluation of Mineral and Mineral Fuel Potential of NE Moffat County State Mineral Lands Administered by the Colorado State Land Board. Mineral and Mineral Fuel. CGS Publications. Nelson-Moore, James L. OF-85-05 Metal Industry in Colorado: Forecasts to the Year 2002. Metal Industry. Gold mining in Colorado - Wikipedia RockTalk V09N2, Fall 2006 Uranium Its Hot!!. As discussed in MS-28 Location Map and Descriptions of Metal Occurrences in Colorado, molybdenite was recognized as an ore of molybdenum early on in the states mining history but the commodity did not become important until World War I. Information Series. Keller, John W., and Harry TerBest. Denver, CO: Colorado Geological Survey, Division of Minerals and Geology, Department of Natural Resources, 1998. https://doi.org/10.58783/cgs.of9806.uwmt5401. Plumlee, Geoffrey S., Randall K. Streufert, Kathleen S. Smith, Alan R. Wallace, Margo I. Toth, J. Thomas Nash, Rob Robinson, Walter H. Ficklin, and Gregory K. Lee. Open File Report. Fill out and submit this form so that we can send you information updates. Denver, CO: Colorado Geological Survey, Department of Natural Resources, 1978. https://doi.org/10.58783/cgs.ms11.lged9989. The Gilman district in Eagle County also produced ~400,000 troy ounces of gold primarily as a byproduct of zinc mining. CGS Publications. These publications give a summary of the historic mining activities as well as a list of references about the geology of each district or area. CGS Publications. Notice the stope tunnel on the next bench up, and in the middle. Information Series. CGS Publications. OF-00-10 History, Geology, and Environmental Setting of the Lower Fair Day Mine, Arapaho/Roosevelt National Forest, Boulder County, Colorado. Geology and Environment. Environmental Geology. At various times throughout its history, Colorado has been the leading U.S. producer of gold, silver, molybdenum, lead, zinc, uranium, and tungsten. Silver mining in Colorado - Wikipedia Denver, CO: Colorado Geological Survey, Division of Minerals and Geology, Department of Natural Resources, February 1999. https://doi.org/10.58783/cgs.of9908.tpvy2991. The Cripple Creek & Victor Gold Mine, formerly and historically the Cresson Mine, is an active gold mine located near the town of Victor, in the Cripple Creek mining district in the US state of Colorado.The richest gold mine in Colorado history, it is the only remaining significant producer of gold in the state, and produced 322,000 troy ounces of gold in 2019, and reported 3.45 million troy . Denver, CO: Colorado Geological Survey, Division of Minerals and Geology, Department of Natural Resources, 2001. https://doi.org/10.58783/cgs.of0112.bucf7210. Widmann, Beth L., and Harry Terbest. Denver, CO: Colorado Geological Survey, Division of Minerals and Geology, Department of Natural Resources, 2001. https://doi.org/10.58783/cgs.of0113.lfcq4714. Denver, CO: Colorado Geological Survey, Division of Minerals and Geology, Department of Natural Resources, December 2001. https://doi.org/10.58783/cgs.of0121.jtto7622. Widmann, Beth L., Laura Wray, and Rachel E. Garrison. Miscellaneous Investigations. Telluride Colorado - Western Mining History Also, the CGS RockTalk: Gold in Colorado provides an excellent summary of gold in Colorado. Open File Reports. CGS Publications. CGS Publications. Denver, CO: Colorado Geological Survey, Division of Minerals and Geology, Department of Natural Resources, 2002. https://doi.org/10.58783/cgs.of0214.hehc7611. The Kelsey Lake site was prospected in the early 1990s, and in June 1994, a 14.2-carat gem diamond then the sixth-largest ever found in North America was mined there, according to . Nationwide, coal mines account for almost 10 percent of all methane emissions. Denver, CO: Colorado Geological Survey, Division of Minerals and Geology, Department of Natural Resources, January 1999. https://doi.org/10.58783/cgs.of9901.ljwe8992. Other important mining districts in the state that historically produced over ~500,000 troy ounces of gold include the Idaho Springs district in Clear Creek county, Summitville district in Rio Grande County, and Empire district in Clear Creek County. Open File Report. OF-01-12 History, Geology, And Environmental Setting of the Lienhart Mine, Pike/San Isabel National Forest, Chaffee County, Colorado. Mine Site History. CGS Publications. Denver, CO: Colorado Geological Survey, Division of Minerals and Geology, Department of Natural Resources, May 2003. https://doi.org/10.58783/cgs.of0301.fqvk6911. A tale of Colorado's biggest and smallest coal mines Pikes Peak or Bust was emblazoned on many of the ox-drawn wagons carrying optimistic prospectors across the Great Plains to the Rocky Mountains of Colorado. Bulletin. Map Series. Colorado Mines - Western Mining History Information Series. Denver, CO: Colorado Geological Survey, Division of Minerals and Geology, Department of Natural Resources, 2000. https://doi.org/10.58783/cgs.of0011.bwnd1643. Open File Report. CGS Publications. 254, Washington: Government Printing Office, Lindgren, W., and Ransome, F.L., 1906, Geology and Gold Deposits of the Cripple Creek District, Colorado, USGS Professional Paper No. CGS Publications. OF-99-19 Evaluation of Mineral and Mineral Fuel Potential of Yuma County State Mineral Lands Administered by the Colorado State Land Board. Mineral and Mineral Fuel. CGS Publications. CGS Publications. Map Series. Denver, CO: Colorado Geological Survey, Division of Minerals and Geology, Department of Natural Resources, 2003. https://doi.org/10.58783/cgs.of0320.zypn6700. OKeeffe, Michael K., and Karen A. Berry. CGS Publications. This discovery led to the first Colorado gold rush. McCalpin, James P., Jonathan A. Funk, and David Mendel. The Rich Silver Mines of Aspen, Colorado - RareGoldNuggets.com Open File Reports. Information Series. Grout, F. F., P. G. Worcester, Junius Henderson, and R. M. Butters. Miscellaneous Investigations. OF-01-07 Evaluation of Mineral and Mineral Fuel Potential of Cheyenne County State Mineral Lands Administered by the Colorado State Land Board. Mineral and Mineral Fuel. Denver, CO: Colorado Geological Survey, Division of Minerals and Geology, Department of Natural Resources, 1999. https://doi.org/10.58783/cgs.of9917.wnpw8339. CGS Publications. Information Series. Cappa, James A., L. Alex Scarbrough, Jr., Harry TerBest, and H. Thomas Hemborg. CGS Publications. Mining activities at the site contaminated soil, surface water and groundwater with heavy metals. Looking into the Fuller-Traylor NT Gyratory Crusher, which reduces the ore to fragments of 3/4 of an inch or less. Bulletin. Denver, CO: Colorado Geological Survey, Division of Minerals and Geology, Department of Natural Resources, February 2003. https://doi.org/10.58783/cgs.of0307.gwwb7068. Golden, CO: Colorado Geological Survey, 2015. Muilenburg, G. A. CGS Publications. View of Telluride, Colorado from the mines above Pandora. IS-67 Colorado Mineral and Mineral Fuel Activity, 2002. Mineral and Mineral Fuel. OF-02-03 Geologic Map of the Keystone Quadrangle, Summit County, Colorado. Geologic, 1:24,000. [8] The operation became part of AngloGold in March 1999, when the company acquired the Independence Mining Company and thereby 66% of the mine. Denver, CO: Colorado Geological Survey, Division of Minerals and Geology, Department of Natural Resources, January 2003. https://doi.org/10.58783/cgs.of0303.uigz6621. The mine employed 562 people in 2009, of which 367 were permanent employees. MI-13 Energy Resources Map of Colorado. Energy Resources. Denver, CO: Colorado Geological Survey, Department of Natural Resources, 1978. https://doi.org/10.58783/cgs.b40.yzqh7535. The early history of Colorado parallels the history of metal mining in the U.S. and is directly tied to the first significant documented discovery of gold in the summer of 1858. Bulletin. Guilinger, James R., and John W. Keller. Cappa, James A., Christopher J. Carroll, and H. Thomas Hemborg. The U.S. Geological Survey (USGS) Mineral Resources Data System catalogs information about mineral resources around the United States and the world. IS-79 Colorado Mineral and Energy Industry Activities 2015-2016. Mineral and Energy Industry. CGS Publications. Gangue minerals include pyrite, quartz, and fluorite. George, R. D., Horace B. Patton, Arthur J. Hoskin, and G. Montague Butler. Denver, CO: Colorado Geological Survey, Division of Minerals and Geology, Department of Natural Resources, January 2000. https://doi.org/10.58783/cgs.of0005.xhbw2880. Denver, CO: Colorado Geological Survey, Division of Minerals and Geology, Department of Natural Resources, 2001. https://doi.org/10.58783/cgs.of0120.qdcg7236. OF-00-06 Evaluation of Mineral and Mineral Fuel Potential of Chaffee, Gunnison, Lake, and Pitkin Counties State Mineral Lands Administered by the Colorado State Land Board. Mineral and Mineral Fuel. OF-99-11 Evaluation of Mineral and Mineral Fuel Potential of NW Moffat County State Mineral Lands Administered by the Colorado State Land Board. Mineral and Mineral Fuel. Wallace, C.A., John W. Keller, James P. McCalpin, Paul J. Bartos, E. E. Route, Natalie N. Jones, Francisco Gutierrez, Cindy L. Williams, and Matthew L. Morgan. A few buildings remain standing and there . Denver, CO: Colorado Geological Survey, Division of Minerals and Geology, Department of Natural Resources, 2003. https://doi.org/10.58783/cgs.of0310.tnba4422. All of the data can be downloaded for further use and analysis. Denver, CO: Colorado Geological Survey, Division of Minerals and Geology, Department of Natural Resources, 1999. https://doi.org/10.58783/cgs.of9915.epxd1371. Hemborg, H. Thomas, Harry Terbest, L. Alex Scarbrough, Jr., and Rachel Coursey. Open File Report. CGS Publications. However, today, the mine strictly uses surface mining. IS-52 Colorado Mineral and Mineral Fuel Activity, 1998. Mineral and Mineral Fuel. CGS Publications. The data was compiled by our sister company,. CGS Publications. Warren, Harry & Frank Woods entered the Victor mining scene in when they purchased the Mount Rosa Placer and incorporated the Mt. . CGS Publications. Crawford, R. D., and Russell Gibson. Goddard, Edwin Newell. The ore is in altered and brecciated volcanic and volcanoclastic rocks of Oligocene age and predominantly quartz latite composition. CGS Publications. Bulletin 05 Part 1 Reconnaissance of the Geology of the Rabbit Ears Region, Routt, Grand, and Jackson Counties, Colorado; Part 2 Permian or Permo-Carboniferous of the Eastern Foothills of the Rocky Mountains in Colorado. Geology. Bulletin. CGS Publications. Explorer Zebulon Pike heard a report of gold in South Park, present-day Park County, Colorado, in 1807. Simmons, William B., and E. W. Heinrich. Open File Report. Open File Report. Boulder, CO: Colorado Geological Survey, 1919. https://doi.org/10.58783/cgs.b15.elyq8268. Gilpin County Mines (410 Mines) Grand County Mines (71 Mines) Gunnison County Mines (801 Mines) Hinsdale County Mines (156 Mines) Huerfano County Mines (48 Mines) Jackson County Mines (79 Mines) Jefferson County Mines (144 Mines) Kit Carson County Mines (2 Mines) More than 1,700 coal mines have operated in Colorado at one time or another over the last 160 years, from Larimer and Las Animas counties in the east to Moffat and Montezuma counties in the west. CGS Publications. New Elk and West Elk, the two mines, also bucked the long-term decline of coal last year. CGS Publications. CGS Publications. IS-42 Colorado Mineral and Mineral Fuel Activity, 1996. Mineral and Mineral Fuel. The Orient Mine, active from 1880 through 1932, was the largest producer of iron ore in Colorado, having produced about two million tons of limonite. Denver, CO: Colorado Geological Survey, Department of Natural Resources, 1989. https://doi.org/10.58783/cgs.ms25.ygmr1422. Superfund Sites in Reuse in Colorado | US EPA IS-54 Colorado Mineral and Mineral Fuel Activity, 1999. Mineral and Mineral Fuel. Information Series. IS-40 Colorado Mineral and Mineral Fuel Activity, 1995. Mineral and Mineral Fuel. CGS Publications. Open File Reports. CGS Publications. Koenig, Nicole V. OF-02-09 Evaluation of Mineral and Mineral Fuel Potential of Morgan County State Mineral Lands Administered by the Colorado State Land Board. Mineral and Mineral Fuel. A Trip Into Colorado's Largest Gold Mine, Where The Modern - CBS News [16]:110111,113, The Cripple Creek and Victor Narrow Gauge Railroad was opened in 1967 and continues to serve as a tourist attraction. Lawson, Allison D. IS-45 Active Permitted Mine Operations in Colorado, 1996-97. Mining. Denver, CO: State of Colorado Mineral Resources Board, 1947. https://doi.org/10.58783/cgs.mi01.vhqh1869. CGS Publications. Bulletin. CGS Publications. Fischer, R. P. MI-07 Mineral and Water Resources of Colorado. Mineral and Water Resources. CGS Publications. Open File Report. IS-81 Colorado Mineral and Energy Industry Activities 2017-2018. Mineral and Energy Industry. OF-12-06 Leadville South Quadrangle Geologic Map, Lake County, Colorado. Geologic, 1:24,000. As reported in RS-42, Leadville is one of the great metal producing districts of the world and contains six types of mineral deposit systems. [17], The current open cut operation dates back to 1995. Currently, as of 2020, metals mined in Colorado include gold, molybdenum, and silver. Open File Report. The interactive map shows: Active and inactive construction and hardrock mines with information on permitting, size, commodities, fees, land use, and more Coal permit boundaries Alluvial and bedrock aquifers Geology Hydrography Land cover Users can click on individual points for more information. Golden, CO: Colorado Geological Survey, March 2023. https://doi.org/10.58783/cgs.is85.jlax9119. Information Series. Bulletin. OF-99-01 Evaluation of Mineral and Mineral Fuel Potential of Phillips County State Mineral Lands Administered by the Colorado State Land Board. Mineral and Mineral Fuel. OF-01-18 Evaluation of Mineral and Mineral Fuel Potential of Montezuma and Dolores Counties State Mineral Lands Administered by the Colorado State Land Board. Mineral and Mineral Fuel. Some of these materials were produced in greater quantities in Colorado than others including uranium, vanadium, and tungsten. Streufert, Randall K., Wynn Eakins, H. Thomas Hemborg, and Matthew L. Morgan. OF-02-23 Evaluation of Mineral and Mineral Fuel Potential of Weld County State Mineral Lands Administered by the Colorado State Land Board. Mineral and Mineral Fuel. CGS Publications. Information Series. Denver, CO: Colorado Geological Survey, Department of Natural Resources, 2007. https://doi.org/10.58783/cgs.is75.xkzy8070.
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