• Thumbnail for Placer mining
    Placer mining (/ˈplæsər/) is the mining of stream bed deposits for minerals. This may be done by open-pit mining or by various surface excavating equipment...
    22 KB (2,808 words) - 17:27, 22 October 2024
  • Thumbnail for Placer deposit
    sedimentary processes. The name is from the Spanish word placer, meaning "alluvial sand". Placer mining is an important source of gold, and was the main technique...
    11 KB (1,174 words) - 14:13, 4 October 2024
  • Thumbnail for Hydraulic mining
    Hydraulic mining is a form of mining that uses high-pressure jets of water to dislodge rock material or move sediment. In the placer mining of gold or...
    18 KB (2,264 words) - 05:31, 24 October 2024
  • explorers discovered placer gold in the Kenai River in 1848, but no gold was produced. Gold mining started in 1870 from placers southeast of Juneau, Alaska...
    75 KB (8,896 words) - 22:14, 12 August 2024
  • Thumbnail for Placer County, California
    Placer County (/ˈplæsər/ PLASS-ər; Placer, Spanish for "sand deposit"), officially the County of Placer, is a county located in the U.S. state of California...
    61 KB (2,642 words) - 19:13, 28 August 2024
  • Thumbnail for Gold mining
    Recreational mining is often small-scale placer mining but has been challenged for environmental reasons. The disruption of old gold placer deposits risks...
    93 KB (10,180 words) - 01:08, 7 October 2024
  • Thumbnail for Gold mining in the United States
    placers. Other placer deposits on the west bank of the Colorado River were quickly found, including the Picacho and Cargo Muchacho districts. Placer gold...
    37 KB (4,607 words) - 11:32, 11 June 2024
  • Thumbnail for Recreational gold mining
    Recreational mining is often small-scale placer mining but has been challenged for environmental reasons. The disruption of old gold placer deposits risks...
    11 KB (1,112 words) - 21:29, 19 February 2024
  • population and Placer Dome, and also later Barrick Gold, once they bought Placer Dome. In August 2005 Placer Dome had interests in 16 mining operations in...
    8 KB (795 words) - 15:02, 21 April 2023
  • mountains, they used placer mining to extract gold from the local waterways. Placer mines began to appear all over Park County after 1861. Placer gold was found...
    27 KB (3,205 words) - 18:37, 20 September 2024