Related Research Articles
Colorado 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 census.
Cripple Creek is a statutory city that is the county seat of Teller County, Colorado, United States. The city population was 1,155 at the 2020 United States Census. Cripple Creek is a former gold mining camp located 20 miles (32 km) southwest of Colorado Springs near the base of Pikes Peak. The Cripple Creek Historic District, which received National Historic Landmark status in 1961, includes part or all of the city and the surrounding area. The city is now a part of the Colorado Springs, CO Metropolitan Statistical Area and the Front Range Urban Corridor.
The historic City of Central, commonly known as Central City, is a home rule municipality located in Gilpin and Clear Creek counties, Colorado, United States. Central City is the county seat and the most populous municipality of Gilpin County. The city population was 779, all in Gilpin County, at the 2020 United States census. The city is a historic mining settlement founded in 1859 during the Pike's Peak Gold Rush and came to be known as the "Richest Square Mile on Earth". Central City and the adjacent city of Black Hawk form the federally designated Central City/Black Hawk Historic District. The city is now a part of the Denver–Aurora–Lakewood, CO Metropolitan Statistical Area and the Front Range Urban Corridor.
The City of Idaho Springs is the Statutory City that is the most populous municipality in Clear Creek County, Colorado, United States. Idaho Springs is a part of the Denver–Aurora–Lakewood, CO Metropolitan Statistical Area. As of the 2010 census it had a population of 1,717. Idaho Springs is located in Clear Creek Canyon, in the mountains upstream from Golden, some 30 miles (50 km) west of Denver.
Moffat County is a county located in the U.S. state of Colorado. As of the 2020 census, the population was 13,292. The county seat is Craig. With an area of 4,751 square miles, it is the 2nd largest county by area in Colorado, behind Las Animas County.
The City of Lafayette is a home rule municipality located in southeastern Boulder County, Colorado, United States. The city population was 24,453 at the 2010 United States Census.
The Rocky Flats Plant was a U.S. manufacturing complex that produced nuclear weapons parts in the western United States, near Denver, Colorado. The facility's primary mission was the fabrication of plutonium pits, which were shipped to other facilities to be assembled into nuclear weapons. Operated from 1952 to 1992, the complex was under the control of the U.S. Atomic Energy Commission (AEC), succeeded by the Department of Energy (DOE) in 1977.
The Radium Girls were female factory workers who contracted radiation poisoning from painting watch dials with self-luminous paint. The incidents occurred at three different factories in United States: one in Orange, New Jersey, beginning around 1917; one in Ottawa, Illinois, beginning in the early 1920s; and a third facility in Waterbury, Connecticut, also in the 1920s.
Radium, elevation 6,890 feet (2,100 m), is a small rural unincorporated community in southwestern Grand County, Colorado, United States. The community sits in the mountains along an isolated stretch of Colorado River downstream from Gore Canyon and southwest of Kremmling. The mainline of the Denver and Rio Grande Western Railroad runs past the community, which is accessible by dirt and gravel roads only. The community of Radium consists of a cluster of houses on the north side of a bridge on the Colorado. The primary local industry is livestock ranching. The community is named for the element radium, which was formerly mined in Colorado in the early 20th century.
There are more than 1,500 properties and historic districts in Colorado listed on the National Register of Historic Places. They are distributed over 63 of Colorado's 64 counties; only the City and County of Broomfield has none.
Uranium mining is the process of extraction of uranium ore from the ground. Over 50 thousand tons of uranium were produced in 2019. Kazakhstan, Canada, and Australia were the top three uranium producers, respectively, and together account for 68% of world production. Other countries producing more than 1,000 tons per year included Namibia, Niger, Russia, Uzbekistan, the United States, and China. Nearly all of the world's mined uranium is used to power nuclear power plants. Historically uranium was also used in applications such as uranium glass or ferrouranium but those applications have declined due to the radioactivity of uranium and are nowadays mostly supplied with a plentiful cheap supply of depleted uranium which is also used in uranium ammunition. In addition to being cheaper, depleted uranium is also less radioactive due to a lower content of short-lived 234
U and 235
U than natural uranium.
James Walter Douglas was a Canadian born mining engineer and businessman who introduced a number of metallurgical innovations in copper mining and amassed a fortune through the copper mining industry of Bisbee, Arizona Territory and Sonora before and after the turn of the 20th century.
Uranium mining in the United States produced 173,875 pounds (78.9 tonnes) of U3O8 in 2019, 88% lower than the 2018 production of 1,447,945 pounds (656.8 tonnes) of U3O8 and the lowest US annual production since 1948. The 2019 production represents 0.3% of the anticipated uranium fuel requirements of the US's nuclear power reactors for the year.
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.
The United States Radium Corporation was a company, most notorious for its operations between the years 1917 to 1926 in Orange, New Jersey, in the United States that led to stronger worker protection laws. After initial success in developing a glow-in-the-dark radioactive paint, the company was subject to several lawsuits in the late 1920s in the wake of severe illnesses and deaths of workers who had ingested radioactive material. The workers had been told that the paint was harmless. During World War I and World War II, the company produced luminous watches and gauges for the United States Army for use by soldiers.
The Mary Murphy Mine was the principal gold mine of the Chalk Creek mining district of Chaffee County, Colorado, United States, near St. Elmo, Colorado. The Mary Murphy Mine operated continuously from 1870 to 1925, and produced 220 thousand ounces of gold, worth $4.4 million then, plus considerable silver, lead, and zinc. There were two aerial tramways connecting the mine to Romley, Colorado, and the Denver, South Park and Pacific Railroad.
Marshall Pass, elevation 10,842 ft (3,305 m), is a mountain pass in the Rocky Mountains of central-southern Colorado, US. It lies in northern Saguache County on the Continental Divide between the Sawatch Range to the north and the Cochetopa Hills to the south. The pass is part of a backcountry alternative to U.S. Highway 50 between Salida and Gunnison.
The world's largest producer of uranium is Kazakhstan, which in 2019 produced 43% of the world's mining output. Canada was the next largest producer with a 13% share, followed by Australia with 12%. Uranium has been mined in every continent except Antarctica.
The Grand Valley Diversion Dam is a diversion dam in the De Beque Canyon of the Colorado River, about 15 miles (24 km) northeast of Grand Junction, Colorado in the United States. It is a 14-foot (4.3 m) high, 546-foot (166 m) long concrete roller dam with six gates, which were the first and largest of their kind to be installed in the United States.
Colorado mining history is a chronology of precious metal mining, fuel extraction, building material quarrying, and rare earth mining.
References
- ↑ Lutz, Stephen; Chow, Edward; Hoskin, Peter (2013). Radiation Oncology in Palliative Cancer Care, p. 5. John Wiley & Sons.
- ↑ Parsons, Charles L. (November 1915). Bulletin 104 - U.S. Bureau of Mines; Extraction and Recovery of Radium, Uranium and Vanadium from Carnotite (1 ed.). Washington, D.C.: U.S. Government Printing Office. pp. 8 . Retrieved 7 June 2014.
- ↑ Smith, Marius (1922). Guidebook of the Western United States: Part E. The Denver & Rio Grande Western Route, Geological Survey Bulletin 707 Issue 707. USGS.
- ↑ National Radium Institute, Denver Colorado. Historic-Structures.com
- ↑ US National Park Service. "Historic American Engineering Record: National Radium Institute, Denver, Colorado
