MINE EXCAVATIONS Crossword Clue
MINE EXCAVATIONS Crossword Clue
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Crossword Puzzle Infos
Mine excavations are the process of digging tunnels and shafts to access underground mineral deposits. Shafts are vertical or near-vertical tunnels that are used to transport people and equipment to the underground work area. They are also used to provide ventilation and to move ore and waste rock out of the mine.