Tumhalad
From Tolkien Gateway
Tumhalad was a field in West Beleriand that lay between the Narog River and its tributary, the Ginglith. Here the army of Nargothrond fought the Battle of Tumhalad, a last desperate defence against an onslaught led by the Dragon Glaurung. The Elves were overrun and Orodreth, King of Nargothrond, was slain.