working adit

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• adit — /ad it/, n. 1. an entrance or a passage. 2. Also called entry. Mining. a nearly horizontal passage leading into a mine. 3. an approach or access. [1595 1605; < L aditus an approach, equiv. to ad AD + i (s. of ire to go) + tus suffix of v. action] …   Universalium

• tunnels and underground excavations — ▪ engineering Introduction        Great tunnels of the world Great tunnels of the worldhorizontal underground passageway produced by excavation or occasionally by nature s action in dissolving a soluble rock, such as limestone. A vertical opening …   Universalium

• Monte Cristo Gold Mine — Coordinates: 34°21′N 118°05′W / 34.35°N 118.08°W / 34.35; 118.08 The Monte Cristo Gold Mine (Spanish for Mountain of Christ Gold Mi …   Wikipedia

• Mine exploration — This article is about visiting mines. For searching for minerals, see Mineral exploration. Mine exploration is a hobby in which people visit abandoned mines, quarries, and sometimes operational mines. Enthusiasts usually engage in such activities …   Wikipedia

• Consolidated Mines — Not to be confused with Consolidated Mine. Consolidated Mines The Wheal Maid area of the mine Location …   Wikipedia

• Croesor Quarry — in 2007, showing the remains of the fan house by the main adit and the site of the mill …   Wikipedia

• History of coal mining — Due to its abundance, coal has been mined in various parts of the world throughout history and continues to be an important economic activity today. Compared to wood fuels, coal yields a higher amount of energy per mass and could be obtained in… …   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

• Derbyshire lead mining history — Goodluck Mine in Via Gellia. This article details some of the history of lead mining in Derbyshire, England. Contents 1 …   Wikipedia

• Heading — Head ing, n. 1. The act or state of one who, or that which, heads; formation of a head. [1913 Webster] 2. That which stands at the head; title; as, the heading of a paper. [1913 Webster] 3. Material for the heads of casks, barrels, etc. [1913… …   The Collaborative International Dictionary of English

• Heading course — Heading Head ing, n. 1. The act or state of one who, or that which, heads; formation of a head. [1913 Webster] 2. That which stands at the head; title; as, the heading of a paper. [1913 Webster] 3. Material for the heads of casks, barrels, etc.… …   The Collaborative International Dictionary of English