Coal Vein                                              -      N      - 
(-------------------------------------------------)     - <---(M)---> E
                                                        -      -      -

Stone, black as night, covers the walls along this tunnel and the floor
of the tunnel as well.  Piles of the stone are stacked at predetermined
locations awaiting the movers to transport them to the storage area for use.
Old tools and blasting materials litter the floor here and there along the
tunnel.  Other mined tunnels extend to the north; the tunnel ends in the
main chamber to the east.