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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 (Park County, Colorado), 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, Colorado, 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 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cripple Creek, Colorado
Cripple Creek is a List of municipalities in Colorado#Statutory city, statutory city that is the county seat of Teller County, Colorado, 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 southwest of Colorado Springs, Colorado, 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. History For many years, Cripple Creek's high valley, at an elevation of , was considered no more important than a cattle pasture. Many prospectors avoided the area after the ''Mount Pisgah hoax'', a mini gold rush caused by Salting (confidence trick), salting (adding gold to worthless rock). On October 20, 1890, Robert Miller "Bob" Woma ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Colorado Mineral Belt
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. The belt is a "northeast-striking zone defined by: a Proterozoic shear zone system (McCoy, 2001); a suite of Laramide-aged plutons and related ore deposits ( Tweto and Sims, 1963); a major gravity low (Isaacson and Smithson, 1976); low- crustal velocities; and high heat flow (Decker et al., 1988)." Mining districts includ * Central City-Idaho Springs district * Leadville mining district, named for Leadville, Colorado * Sneffels-Red Mountain-Telluride district The belt lies within a zone that has been geologically active at intervals beginning from near the time of crustal accretion in central Colorado at least 1.6 billion years ago until the present. Parts of the CMB follow shear zones of Precambrian age and the Paleozoic ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Arapahoe County, Colorado
Arapahoe County ( ) is a county located in the U.S. state of Colorado. As of the 2020 United States census, 2020 census, its population was 655,070, making it the third-most populous county in Colorado. The county seat is Littleton, Colorado, Littleton, and the most populous city is Aurora, Colorado, Aurora. The county was named for the Arapaho Native Americans in the United States, Native American tribe, who once lived in the region. Arapahoe County is part of the Denver-Aurora-Lakewood, Colorado, Lakewood Denver-Aurora-Lakewood, CO Metropolitan Statistical Area, metropolitan statistical area. Arapahoe County calls itself "Colorado's First County", since its origins antedate the Pike's Peak Gold Rush. History On August 25, 1855, the Kansas Legislature, Kansas Territorial Legislature created a huge Arapahoe County, Kansas Territory, Arapahoe County to govern the entire western portion of the Territory of Kansas. The county was named for the Arapaho Nation, who lived in the regio ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Adams County, Colorado
Adams County is a county located in the U.S. state of Colorado. As of the 2020 United States census, the population was 519,572. The county seat is Brighton, and the largest city is Thornton. The county is named for Alva Adams, an early Governor of the State of Colorado in 1887–1889. Adams County is part of the Denver metropolitan area. History On May 30, 1854, the Kansas–Nebraska Act created the Territory of Nebraska and Territory of Kansas, divided by the Parallel 40° North ( 168th Avenue in present-day Adams County). The future Adams County, Colorado, occupied a strip of northern Arapahoe County, Kansas Territory, immediately south of the Nebraska Territory. In 1859, John D. "Colonel Jack" Henderson built a ranch, trading post, and hotel on Henderson Island in the South Platte River in Arapahoe County, Kansas Territory. Jack Henderson was the former editor and proprietor of the Leavenworth (Kansas Territory) Journal and an outspoken pro-slavery politician ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Construction Aggregate
Construction aggregate, or simply aggregate, is a broad category of coarse- to medium-grained particulate material used in construction. Traditionally, it includes natural materials such as sand, gravel, crushed stone. As with other types of aggregates, it is a component of composite materials, particularly concrete and asphalt. Aggregates are the most mined materials in the world,Introduction (1): What are Aggregates? « Herefordshire & Worcestershire Earth Heritage TrustIntroduction (1): What are Aggregates? « Herefordshire & Worcestershire Earth Heritage Trust, accessdate: March 23, 2017Define Aggregate at Dictionary.comaggregate accessdate: March 23, 2017 being a significant part of 6 billion tons of concrete produced per year. Aggregate serves as reinforcement to add strength to the resulting material. Due to the relatively high hydraulic conductivity as compared to most soil types, aggregates are widely used in drainage applications such as foundation and French drain ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cherry Creek (Colorado)
Cherry Creek is a tributary of the South Platte River, long, in Colorado in the United States. The creek is named for the profusion of black chokecherry shrubs (''Prunus virginiana demissa'') that grow along its banks. Course Cherry Creek rises in the high plateau, east of the Front Range, in northwestern El Paso County. It flows north, through Castlewood Canyon State Park where it is spanned by the historic Cherry Creek Bridge, past Parker and through portions of Centennial and Aurora, and into southeast Denver. It flows northwest through Denver, becoming an urban stream and joining the South Platte River at Confluence Park in central Denver just west of downtown and approximately east of the foothills, near the site where the city of Denver was founded in 1858. The Cherry Creek Dam, completed in 1950, forms Cherry Creek Reservoir in Cherry Creek State Park, providing flood control and irrigation. The dam lies immediately southeast and southwest of the Denver and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Denver, Colorado
Denver ( ) is a List of municipalities in Colorado#Consolidated city and county, consolidated city and county, the List of capitals in the United States, capital and List of municipalities in Colorado, most populous city of the U.S. state of Colorado. It is located in the Western United States, in the South Platte River, South Platte River Valley on the western edge of the High Plains (United States), High Plains east of the Front Range of the Rocky Mountains. With a population of 715,522 as of the 2020 United States census, 2020 census, a 19.22% increase since 2010 United States census, 2010, Denver is the List of United States cities by population, 19th most populous city in the United States and the fifth most populous state capital. Denver is the principal city of the Denver metropolitan area, Denver Metropolitan area (which includes over 3 million people), as well as the economic and cultural center of the broader Front Range Urban Corridor, Front Range, home to more than ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Arvada, Colorado
Arvada () is a home rule city located in Jefferson and Adams counties, Colorado, United States. The city population was 124,402 at the 2020 United States census, with 121,510 residing in Jefferson County and 2,892 in Adams County. Arvada is the seventh most populous city in Colorado. The city is a part of the Denver–Aurora–Lakewood, CO Metropolitan Statistical Area Denver is the central city of a conurbation region in the U.S. state of Colorado. The conurbation includes one continuous region consisting of the six central counties of Adams, Arapahoe, Broomfield, Denver, Douglas, and Jefferson. The Denver regi ... and the Front Range Urban Corridor. The Olde Town Arvada historic district is northwest of the Colorado State Capitol in Denver. History The first documented discovery of gold in the Rocky Mountains, Rocky Mountain region occurred on June 22, 1850, when Lewis Ralston, a Georgia (U.S. state), Georgia prospector traveling with a party headed for the Gold in C ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Auraria, Denver
Auraria was a gold mining camp established in 1858 in the Kansas Territory of the United States. Today it survives in its original location as a neighborhood of Denver, Colorado, immediately south of the confluence of Cherry Creek and the South Platte River. Geography Auraria is in central Denver, just west of downtown, and is roughly triangular, bordered by Colfax Avenue on the south, Cherry Creek to the northeast, and South Platte River to the northwest. History On October 3, 1858, a group of Georgia prospectors led by Green Russell established the townsite of Auraria south of Cherry Creek near the Cherry Creek Diggings, over a month before a group of Kansas Territory speculators led by William Larimer established the rival Denver City on the other side of Cherry Creek. Henry Allen, a surveyor, laid the town platte and was Auraria town company's first president. The town was named for the gold mining settlement of Auraria, Georgia. On October 29, Charl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Green Russell
William Greeneberry "Green" Russell (1818–1877) was an American gold prospector and miner. Early life Green Russell was born in South Carolina but moved with his family to Georgia as a small child. His father James Russell engaged in gold mining during the Georgia Gold Rush that started in 1828 and Green came of age in a local economy dominated by mining. In 1845 he married Susan Willis who was 1/8th Cherokee. Mining in California When gold was found at Sutter's Mill in 1848, a cook for Sutter's crew who was a Georgia native sent word back home enabling Russell to learn of the discovery. Russell led a couple of successful mining ventures to California which included his brothers and other Georgians including Cherokees, some of whom made the trek west overland through the Rockies. Colorado Gold Russell had spent his boyhood in the Cherokee country near Dahlonega, site of the only significant gold rush east of the Mississippi, in what would become Dawson County, along the Etow ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Clear Creek (Colorado)
Clear Creek is a tributary of the South Platte River, approximately long,U.S. Geological Survey. National Hydrography Dataset high-resolution flowline dataThe National Map, accessed March 25, 2011 in north central Colorado in the United States. The creek flows through Clear Creek Canyon in the Rocky Mountains directly west of Denver, descending through a long gorge to emerge at the town of Golden, finally ending in the Colorado Eastern Plains where it joins the South Platte. Clear Creek is unusual in that it is a stream named "creek" fed by a stream named "river"; typically "rivers" are fed by "creeks", and are larger bodies of water, although the nomenclature is ambiguous and there is no clear system. Fall River empties into Clear Creek along I-70 west of Idaho Springs, Colorado. Colorado gold rush The creek is famous as the location of the most intense early mining activity during the Colorado Gold Rush of 1859. The creek provided the route of the Colorado Central Railroa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
