Passage

• shaft

  A long vertical passage sunk into the earth, as for a mine or tunnel.

• adit

  A nearly horizontal passage from the surface into a mine.

Also contains

• sulphur mine

  A mine where sulphur is dug from the ground.

• coal mine

  A mine where coal is dug from the ground.

• salt mine

  A mine where salt is dug.

• copper mine

  A mine where copper is dug from the ground.

• silver mine

  A mine where silver ore is dug.

• mineshaft

  Excavation consisting of a vertical or sloping passageway for finding or mining ore or...

• goldmine

  A mine where gold ore is found.

• strip mine

  An open mine (usually for coal) where the seams run close to the surface.