Mongo
Senior Member
Deepest level where humans can travel to is in a Sudbury mine shaft.
The deepest Sudbury mine shaft is in the Creighton nickel mine, at 2400m (7800 feet) under ground level. That is indeed quite deep, but the deepest mine shaft in the world is in the TauTona gold mine in South Africa, at 3900m (12800 feet) under ground level.