The old mine depot is a cave room, excavated by pickaxes. It holds the entrance to the third level of the Rattling Caverns.
A rail track runs from the entrance directly into a pile of boulders. It is very apparent that the cave collapsed in the past, blocking off the mine tunnel. The room is supported by wooden frame, and barrels of gun powder is placed in the right corner. Pickaxes are spread across the room and a mine cart is still standing on the tracks. A search check (DC 15) reveals 20 meter of thin fuse hides behind the barrels.
Three goblins affected by spellplague are locked in human-sized cages.