Celebdil, also known as Silvertine and Zirakzigil, was one of the three peaks that stood above the Dwarven city of Khazad-dûm. The other two were Caradhras (Redhorn) and Fanuidhol (Cloudyhead).
Celebdil was the southernmost of the Mountains of Moria and the Endless Stair led from the deepest halls of Khazad-dûm up to Durin's Tower on the peak of the mountain. There the Battle of the Peak between Gandalf and Durin's Bane took place.
Artwork
The Battle of the Peak
John Howe