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Remote-controlled continuous miners are used to work in a variety of difficult seams and conditions, and robotic versions controlled by computers are becoming increasingly common. Continuous mining is a misnomer, as room and pillar coal mining is very cyclical. In the US, one can generally cut up to around 20 feet (6 meters).
25th Anniversary of the Surface Mining Law: A report on the protection and restoration of the nation's land and water resources under the Surface Mining Law, Office of Surface Mining, 2003. Available at OSM website. Green, Edward. State and Federal Roles Under the Surface Mining Control and Reclamation Act of 1977, 21 S. Ill. U. L.J. 531 (1997)
Globally, it is listed as Least Concern on the IUCN Red List [1] but is a Conservation Strategy Species in Oregon [2] and Fully Protected in California [3] The species is known by a variety of names, such as ring-tailed cat, miner's cat, civet cat, and cacomistle (or cacomixtle), though the last of these can refer to B. sumichrasti.
Cart from 16th century, found in Transylvania. A minecart, mine cart, or mine car (or more rarely mine trolley or mine hutch) is a type of rolling stock found on a mine railway, used for transporting ore and materials procured in the process of traditional mining.
Meaning, when mineral rights are extracted by a company that does not own the property above where the minerals are located, the company has the legal right to extract those minerals regardless. However, companies will often enter into voluntary negotiations with the surface rights owner to ensure that the operations all go smoothly.
Shortwall mining – A coal mining method that accounts for less than 1% of deep coal production, shortwall involves the use of a continuous mining machine with moveable roof supports, similar to longwall. The continuous miner shears coal panels 150–200 feet wide and more than a half-mile long, depending on other things like the strata of the ...
Industrial Structure, Union Strategy and Strike Activity in Bituminous Coal Mining, 1881 - 1894 Social Science History 26 (2002): 1 - 32. Roy, Andrew. A history of the coal miners of the United States, from the development of the mines to the close of the anthracite strike of 1902, including a brief sketch of early British miners (1907) online
Mining of sulfur from a deposit at the edge of Ijen's crater lake, Indonesia. Mining is the extraction of valuable geological materials and minerals from the surface of the Earth. Mining is required to obtain most materials that cannot be grown through agricultural processes, or feasibly created artificially in a laboratory or factory.