This disused train tunnel once allowed trains access to two nearby coal mines. The tunnel was built in 1908, and was sealed shortly after the last mine finally closed in late 1983. The tunnel is of brick construction with concrete spread over the brick, and is approximately 500 feet long. Today, the tunnel is sealed with large piles of dirt and rock on both ends, and has partially filled with water as a result.
To get in, you must wriggle through this tiny hole in the mountain.
Looking back at the way in.
Going to return here with waders some day.