
The Stair Falls were the falls beneath the West-gate of Moria, where the Gate Stream of the Sirannon made a waterfall some thirty feet in height before flowing out across the grasslands of Eregion. The falls took their name from the stair carved beside them in the rock of the cliff.[1]
Portrayal in adaptations

2008: The Lord of the Rings Online:
- The Stair Falls are a landmark outside of the Doors of Durin, presently standing dry as the Sirannon has been dammed.