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Placer mining (/ ˈ p l æ s ər /) [1] is the mining of stream bed deposits for minerals. [2] This may be done by open-pit mining or by various surface excavating equipment or tunneling equipment.
Placerville (/ ˈ p l æ s ər v ɪ l /, PLASS-ər-vil; placer, Spanish for "sand deposit", representing the placer mining that was predominant in the town's development, and ville, French for "town") is a city in and the county seat of El Dorado County, California, United States. The population was 10,747 as of the 2020 census, up from 10,389 ...
Because the gold in the California gravel beds was so richly concentrated, the early forty-niners simply panned for gold in California's rivers and streams, a form of placer mining. [ 10 ] [ 11 ] However, panning cannot take place on a large scale, and industrious miners and groups of miners graduated to placer mining " cradles " and "rockers ...
By the early 1860s, while hydraulic mining was at its height, small-scale placer mining had largely exhausted the rich surface placers, and the mining industry turned to hard rock (called quartz mining in California) or hydraulic mining, which required larger organizations and much more capital. By the mid-1880s, it is estimated that 11 million ...
Placer County (/ ˈ p l æ s ər / PLASS-ər; Placer, Spanish for "sand deposit"), officially the County of Placer, is a county located in the U.S. state of California. As of the 2020 United States census, the population was 404,739. [4] The county seat is Auburn. [5] Placer County is included in the Greater Sacramento metropolitan area.
The area soon developed into a mining camp, and it was officially named Auburn in August 1849, by miners from Auburn, New York. [12] By 1850, the town's population had grown to about 1,500 people, and in 1851, Auburn was chosen as the seat of Placer County. Gold mining operations moved up the ravine to the site of present-day Auburn.
The town was established in approximately 1857 by Carl Norst as a placer mining camp. [4] By 1859, a group of Mormons had arrived as miners at the site and a mining camp arose. [3] Dog Town became the site of the first gold rush to the eastern slope of the Sierra Nevada. Prospectors rushed here after hearing rumors of gold being washed out near ...
Ophir was a boomtown of the California Gold Rush. Originally named The Spanish Corral in 1849, [4] Ophir received its Biblical name Ophir, the source of King Solomon's treasures, in 1850 because of the rich gold placer mining in the area. [2] In 1852 it was the center of the local gold mining industry, and the most populous town in the county.