Goblin Town.

The Goblin Town or the Orc-cave Bilbo, Gandalf, Thrain II. and their company were trapped in and where Bilbo found the One Ring was in Hithaeglir between Rhimdath and Cirith Forn en Andrath and a little West of the Eagles Eyrie. Deep beneath the roots of the mountains were the cave with the lake where Gollum had his secret dwelling.