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Coal Mining In Colorado
Early coal mining in Colorado in the United States was spread across the state. Some early coal mining areas are currently inactive, including the Denver Basin and Raton Basin coal fields along the Front Range. There are currently 11 active coal mines, all in western Colorado. History Coal mining in Colorado dates back to 1859, when a pair of men began mining a coal deposit between the gold rush settlements of Denver and Boulder. Labor struggles The early history of coal mining in Colorado was one of discontent on the part of miners, and periodic confrontations with the mine operators. The work was dangerous, and Colorado's death rate in the mines was high. In 1917, 121 people died in the Hastings mine explosion. Erie, Colorado claims the first mining labor union in Colorado, which was the Knights of Labor, Local #771, established in 1878.Town of Erie, A Selected Timeline of Erie's History, http://www.erieco.gov/index.cfm?objectid=DEEF1EB2-D614-E19E-26FD7FC0215D314C retrieve ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Coal Mining
Coal mining is the process of extracting coal from the ground. Coal is valued for its energy content and since the 1880s has been widely used to generate electricity. Steel and cement industries use coal as a fuel for extraction of iron from iron ore and for cement production. In the United Kingdom and South Africa, a coal mine and its structures are a colliery, a coal mine is called a 'pit', and the above-ground structures are a 'pit head'. In Australia, "colliery" generally refers to an underground coal mine. Coal mining has had many developments in recent years, from the early days of men tunneling, digging and manually extracting the coal on carts to large open-cut and longwall mines. Mining at this scale requires the use of draglines, trucks, conveyors, hydraulic jacks and shearers. The coal mining industry has a long history of significant negative environmental impacts on local ecosystems, health impacts on local communities and workers, and contributes heavily to th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Columbine Mine Massacre
The Columbine Mine massacre, sometimes called the first Columbine massacre, occurred in 1927, in the town of Serene, Colorado. A fight broke out between Colorado state militia and a group of striking coal miners, during which the unarmed miners were attacked with firearms. The miners testified that machine guns were fired at them, which the state police disputed. Six strikers were killed, and dozens were injured. Background The company town of Serene, Colorado, nestled on a rolling hillside, was the home of the Columbine mine. The strike was five weeks old, and strikers had been conducting morning rallies at Serene for two weeks, for the Columbine was one of the few coal mines in the state to remain in operation. On November 21, 1927, five hundred miners, some accompanied by their wives and children, arrived at the north gate just before dawn. They carried three United States flags. At the direction of Josephine Roche, daughter of the recently deceased owner of the Rocky Mou ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mining In Colorado
Mining is the extraction of valuable minerals or other geological materials from the Earth, usually from an ore body, lode, vein, seam, reef, or placer deposit. The exploitation of these deposits for raw material is based on the economic viability of investing in the equipment, labor, and energy required to extract, refine and transport the materials found at the mine to manufacturers who can use the material. Ores recovered by mining include metals, coal, oil shale, gemstones, limestone, chalk, dimension stone, rock salt, potash, gravel, and clay. Mining is required to obtain most materials that cannot be grown through agricultural processes, or feasibly created artificially in a laboratory or factory. Mining in a wider sense includes extraction of any non-renewable resource such as petroleum, natural gas, or even water. Modern mining processes involve prospecting for ore bodies, analysis of the profit potential of a proposed mine, extraction of the desired materials ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
History Of Coal Mining In The United States
The history of coal mining in the United States goes back to the 1300s, when the Hopi Indians used coal. The first commercial use came in 1701, within the Manakin-Sabot area of Richmond, Virginia. Coal was the dominant power source in the United States in the late 1800s and early 1900s, and although in rapid decline it remains a significant source of energy in 2019. Coal became the largest source of energy in the 1880s, when it overtook wood, and remained the largest source until the early 1950s, when coal was exceeded by petroleum. Coal provided more than half of the nation's energy from the 1880s to the 1940s, and from 1906 to 1920 provided more than three-quarters of US energy. 19th century At the start of the 19th century, coal mining was almost all bituminous coal. In 1810, 176,000 short tons of bituminous coal, and 2,000 tons of anthracite coal, were mined in the United States. American coal mining grew rapidly in the early 1820s, doubling or tripling every decade. A ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mining In Colorado Springs
In the mid-19th century, Colorado Springs was a center of mining industry activity. Coal was mined in 50 mines in the area and towns, now annexed to Colorado Springs, were established to support residents of the coal mining industry. It was the home to gold and silver mine investors, like Winfield Scott Stratton and William Jackson Palmer. The Midland Terminal and Colorado Midland Railways were established in Colorado Springs to transported metals and ores and people from mountain towns. Once in Colorado Springs, ore was smelted there. People and goods were transported on the Railways to and from Colorado Springs, as well as on the Denver & Rio Grande Railroad. Mine workers typically lived on the west side of town, like Old Colorado City, while investors lived in the Old North End. Gold During the Pike's Peak Gold Rush, Old Colorado City was founded in 1859, based upon the vision of it being a major supply hub via Ute Pass for the new gold mines in South Park, the Upper Arkans ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Uranium Mining In Colorado
Uranium mining in Colorado, United States, goes back to 1872, when pitchblende ore was taken from gold mines near Central City, Colorado. The Colorado uranium industry has seen booms and busts, but continues to this day. Not counting byproduct uranium from phosphate, Colorado is considered to have the third largest uranium reserves of any US state, behind Wyoming and New Mexico. Uranium price increases from 2001 to 2007 prompted a number of companies to revive uranium mining in Colorado. However, price drops and financing problems in late 2008 have forced some companies to cancel or scale back uranium-mining projects. There are no currently producing uranium mines in Colorado. Front Range province Hydrothermal uranium deposits are present through a widely spaced area in the Front Range of the Rocky Mountains, in Larimer, Boulder, Gilpin, Clear Creek, and Jefferson counties. The first uranium identified in the USA was pitchblende from the Wood gold mine at Central City, Colo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Silver Mining In Colorado
Silver mining in Colorado has taken place since the 1860s. In the past, Colorado called itself the ''Silver State''. (Nevada also calls itself the ''Silver State''. Idaho, however, actually produces the most silver in the US.) Central City-Idaho Springs district Silver veins were discovered in the Central City-Idaho Springs district a short time after gold was discovered there in 1859. However, mining the silver veins was delayed for the most part until smelters were built in the late 1860s. The veins of the district are zoned in a roughly concentric manner, with gold-bearing pyrite veins in the center, and silver-bearing galena veins more common in the outlying areas. Montezuma district The first silver discovery in Colorado was south of Montezuma in 1864. The discovery led to others in the Montezuma district, including those at Saints John. Argentine district The discovery of silver in the Montezuma district led to the silver discovery at the Belmont lode in the Argentine ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gold Mining In Colorado
Gold mining in Colorado, a state of the United States, has been an industry since 1858. It also played a key role in the establishment of the state of Colorado. Explorer Zebulon Pike heard a report of gold in South Park, present-day Park County, Colorado, in 1807.A. H. Koschman and M. H. Bergendahl (1968) ''Principal gold-Producing Districts of the United States'', US Geological Survey, Professional Paper 610, p.143. Gold discoveries in Colorado began around Denver; prospectors traced the placer gold to its source in the mountains west of Denver, then followed the Colorado Mineral Belt in a southwest direction across the state to its terminus in the San Juan Mountains. The Cripple Creek district, far from the mineral belt, was one of the last gold districts to be discovered and is still in production. Denver-area placers On June 22, 1850, a wagon train bound for California crossed the South Platte River just north of the confluence with Clear Creek and followed Clear Creek w ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Western Interconnection
The Western Interconnection is a wide area synchronous grid and one of the two major alternating current, alternating current (AC) power grids in the North American power transmission grid. The other major wide area synchronous grid is the Eastern Interconnection. The minor interconnections are the Québec Interconnection, the Texas Interconnection, and the Alaska Interconnections. All of the electric utilities in the Western Interconnection are electrically tied together during normal system conditions and operate at a synchronized frequency of 60 Hz. The Western Interconnection stretches from Western Canada south to Baja California in Mexico, reaching eastward over the Rocky Mountains, Rockies to the Great Plains. Interconnections can be tied to each other via high-voltage direct current power transmission lines (DC ties) such as the north-south Pacific DC Intertie, or with variable-frequency transformers (VFTs), which permit a controlled flow of energy while also func ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wind Power In Colorado
The US state of Colorado has vast wind energy resources and the installed electricity capacity and generation from wind power in Colorado has been growing significantly in recent years. The growth has been sustained due to a combination of falling costs (69% reduction from 2009 to 2018), continuing federal incentives (similar to those supporting most other resource development), and the state's aggressive renewable portfolio standard that requires 30% of the state's electricity to come from renewable sources by 2020. Wind power accounted for 14.2% of total electricity generated in Colorado during 2015. Its share increased to more than 17% for years 2016 thru 2018. As of the end of 2018, more than three times as much power is produced by wind within the state as is produced from all other renewable sources combined. The cities of Pueblo, Colorado, Pueblo, Brighton, Colorado, Brighton, and Windsor, Colorado are home to four Vestas manufacturing facilities which together employ ab ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Energy In Colorado
Colorado (, other variants) is a state in the Mountain West subregion of the Western United States. It encompasses most of the Southern Rocky Mountains, as well as the northeastern portion of the Colorado Plateau and the western edge of the Great Plains. Colorado is the eighth most extensive and 21st most populous U.S. state. The 2020 United States census enumerated the population of Colorado at 5,773,714, an increase of 14.80% since the 2010 United States census. The region has been inhabited by Native Americans and their ancestors for at least 13,500 years and possibly much longer. The eastern edge of the Rocky Mountains was a major migration route for early peoples who spread throughout the Americas. "''Colorado''" is the Spanish adjective meaning "ruddy", the color of the Fountain Formation outcroppings found up and down the Front Range of the Rocky Mountains. The Territory of Colorado was organized on February 28, 1861, and on August 1, 1876, U.S. President Ulysses ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Coal In The United States
Coal mining is an industry in transition in the United States. Production in 2019 was down 40% from the peak production of in 2008. Employment of 43,000 coal miners is down from a peak of 883,000 in 1923. Generation of electricity is the largest user of coal, being used to produce 50% of electric power in 2005 and 27% in 2018. The U.S. is a net exporter of coal. U.S. coal exports, for which Europe is the largest customer, peaked in 2012. In 2015, the U.S. exported 7.0 percent of mined coal. According to the U.S. Energy Information Administration (EIA), in 2015, Wyoming, West Virginia, Kentucky, Illinois, and Pennsylvania produced about , representing 71% of total coal production in the United States. In 2015, four publicly traded US coal companies filed for Chapter 11 bankruptcy protection, including Patriot Coal Corporation, Walter Energy, and the fourth-largest Alpha Natural Resources. By January 2016, more than 25% of coal production was in bankruptcy in the United S ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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