An undated, colorized close-up view of the opening to the Bear Gap Mine Tunnel at Lykens, Dauphin County, Pennsylvania.
The Bear Gap Mine Tunnel of the Lykens Valley Coal Company went approximately 3300 feet into Coal or Thick Mountain in Dauphin County, Pennsylvania. This effort was made in order to reach the last vein of coal. At the end of the tunnel, an air hole was made to the surface. This air hole became somewhat legendary in that miners and school children from Gratz and Lykens Township used it to access the Bear Gap Tunnel and get to the Lykens side of the mountain.
The photo looks north.
______________________________________
Corrections and additional information should be added as comments to this post.