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Underground mining (hard rock) — A three dimensional model of an underground mine with shaft access Underground hard rock mining refers to various underground mining techniques used to excavate hard minerals, mainly those containing metals[1] such as ore containing gold … Wikipedia
mining — /muy ning/, n. 1. the act, process, or industry of extracting ores, coal, etc., from mines. 2. the laying of explosive mines. [1250 1300; ME: undermining (walls in an attack); see MINE2, ING1] * * * I Excavation of materials from the Earth s… … Universalium
Whim Creek Copper Mine — The Whim Creek Copper Mine is an operating copper oxide mine, located in the Pilbara region of Western Australia. History Copper was discovered several kilometres west of the town in 1872 and gold 20 km north in 1887. Copper has been mined on and … Wikipedia
Mining in the Upper Harz — The headframe of the Emperor William Shaft in Clausthal is one of the oldest surviving winding towers in Germany … Wikipedia

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