From Tolkien Gateway
The mountain was brooding and black. On its lower slopes was the wood of Dimholt. Beyond its glen and behind a single standing stone, was the Dark Door, which led inside the Dwimorberg and the haunted Paths of the Dead.
- J.R.R. Tolkien, The Lord of the Rings, The Return of the King, "The Passing of the Grey Company"
- J.R.R. Tolkien, The Lord of the Rings, The Return of the King, "The Last Debate"
- J.R.R. Tolkien, "Unfinished index for The Lord of the Rings", in Wayne G. Hammond and Christina Scull (eds), The Lord of the Rings: A Reader's Companion, p. 533
- Robert Foster, The Complete Guide to Middle-earth, p. 101