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...

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...

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...

Recreational mining is typically small-scale placer mining but has been challenged for environmental reasons. The disruption of historic gold placer deposits...

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...

Recreational mining is typically small-scale placer mining but has been challenged for environmental reasons. The disruption of historic gold placer deposits...

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...

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...

panning, or simply panning, is a form of placer mining and traditional mining that extracts gold from a placer deposit using a pan. The process is one...

placers. Other placer deposits on the west bank of the Colorado River were quickly found, including the Picacho and Cargo Muchacho districts. Placer gold...

land after the mine is closed. Mining materials are often obtained from ore bodies, lodes, veins, seams, reefs, or placer deposits. The exploitation of...

and silver mining because of the convenience and the ease with which mercury and the precious metals will amalgamate. In gold placer mining, in which minute...

ore and other materials in the process of mining. Pans are used for placer mining operations, such as gold panning. The traditional method of cracking...

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...

placer gold discovery, achieved fame as a silver-mining district, then relied on lead and zinc in its later days. Butte, Montana began mining placer gold...

used by miners and prospectors to indicate the presence of a placer formation. Placer mining activities produce a concentrate that is composed mostly of...

extended similar rules to placer mining claims in the "placer law" signed into law on July 9, 1870. The Chaffee law of 1869 and the placer law of 1871 were combined...

and one of the largest in the world as of 2016. It was found at a placer mining factory in the area of the Lower Lena River (Yakutia, Far Eastern Federal...

Look up placer in Wiktionary, the free dictionary. Placer may refer to one of the following: Placer deposit Placer sheep Placer mining Placer (geography)...

Watercourses often concentrate nuggets and finer gold in placers. Nuggets are recovered by placer mining, but they are also found in residual deposits where...

to a more settled way of life, planting orchards and vineyards, as placer mining diminished. In 1855, the State legislature passed a law which exempted...

upper Susitna River Valley in 1898, soon followed by claim staking. Placer mining was reported in the Cache Creek drainage of the Dutch Hills by 1906...

Placerville (/ˈplæsərvɪl/, PLASS-ər-vil; placer, Spanish for "sand deposit", representing the placer mining that was predominant in the town's development...

A gold dredge is a placer mining machine that extracts gold from sand, gravel, and dirt using water and mechanical methods. Original gold dredges were...

in a placer claim is almost always gold, although other nations mine placer deposits of platinum, tin, and diamonds. In the United States, a placer claim...

its affiliates worldwide. The series follows the placer gold mining efforts of various family-run mining companies, initially in Alaska, but then mostly...

River Canyon in Colorado. The Montrose Placer Mining Company built the flume in the 1880s to facilitate gold mining. Some sections of the flume remain attached...

Television. The series followed four or five placer mining crews as they searched for gold over the four-month Yukon mining season. The series was acquired in the...

Diamonds were reported from numerous places across India, but most of the diamond mining took place by placer mining in the drainages of the Pannar River...

locations for placer gold. Sampling and assaying a placer gold deposit to determine its economic viability is subject to many pitfalls. Once placer gold is...