Mine

• 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

• passageway

  A passage between rooms or between buildings.

• conduit

  A passage (a pipe or tunnel) through which water or electric wires can pass; "the computers...

• channel

  A passage for water (or other fluids) to flow through; "the fields were crossed with irrigation...

• aisle

  A long narrow passage (as in a cave or woods).

• fish ladder

  A series of ascending pools providing a passage for salmon to swim upstream past a ...

• cul de sac

  A passage with access only at one end.

• right of way

  The passage consisting of a path or strip of land over which someone has the legal...

• throat

  A passage resembling a throat in shape or function; "the throat of the vase"; "the throat...