Hyarmentir

Mount Hyarmentir (Q, pron. [çarˈmentir]) was a mighty mountain to the south and east of Valinor, perhaps of the Pelóri. It was one of the tallest in Aman, but not as Taniquetil to the north, which was the tallest of the world.

Melkor and Ungoliant climbed it, as Ungoliant wrought her webs between clefts and pinnacles. From its summit, they looked out over the Tree-lit land of the Valar, before they descended Mount Hyarmentir's long, shallow western slopes and set out to destroy the light of the Two Trees.