|This article describes a concept which is mentioned in J.R.R. Tolkien's works, but was never given a definite name.
|Feet of the Dwimorberg
|Passage of Brego and later the Grey Company
- "There under the gloom of black trees that not even Legolas could long endure they found a hollow place opening at the mountain's root, and right in their path stood a single mighty stone like a finger of doom. 'My blood runs chill,' said Gimli"
- ― The Passing of the Grey Company
The glen at the Dwimorberg was a location on the side of the mountain. At one end was the forest of Dimholt; on the other, the Dark Door.