The Old Mines are one of the many locations in COTC.
The Old Mines are a deep ravine. Above it is a fallen pole for players to cross on, a long ladder connecting the bottom to the ground-level grass and two small wooden bridges. A small cave can be found on the south-end containing some candles and three graves containing one mask each.
You can find items to repair the generator (Fuse/Wire/Lightbulb) here.
It is located north of Satan's Tunnel.