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Line 1: − A '''drift mine''' is a type of coal mine that is driven horizontally into [[coal]] that is exposed or accessible in a hillside. + − In a [[hydraulic mine]], high-pressure water jets break the [[coal]] from a steeply inclined, thick coal bed that would be difficult to mine with the usual underground methods. The [[coal]] is then transported to the surface by a system of flumes or by pipeline. + − − Although currently not in commercial use in the [[United States]], hydraulic mining is used in western [[Canada]]. − [[category:Mining]]
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God is dead, America is a horrible place to live, Global Warming and Greenhouse gasses are linked, Abortion is a choice, the pope was and is a nazi, abstinence only education fails, and Evolution is a fact. The bible cannot answer all questions. For any questions please visit www.ebaumsworld.com
-Hazudra