Sind.: Iron Prison
Fortress of Melkor.
|They passed through all perils, until they came with the dust of their long and weary road upon them the drear dale that lay before the Gate of Angband. Black chasms opened beside the road, whence forms as of withering serpents issued. On either hand the cliffs stood as embattled walls, and upon them sat carrion fowl crying with fell voices. Before them was the impregnable Gate, an arch wide and dark at the foot of the mountain; above it reared a thousand feet of peripice.
|From: The Silmarillion: Of Beren and Lúthien)