‘I feared as much,’ said Aragorn. ‘But maybe they are not on this side of the River. The light of Sting is faint, and it may point to no more than spies of Mordor roaming on the slopes of Amon Lhaw.
- The Fellowship of the Ring (Book 2), Chapter 10
The ruin of Amon Lhaw sits on top of the easternmost peak at the southern end of Nen Hithoel. Erected in the days of the great kings of Gondor, it houses a great ancient chair called the Seat of Hearing. While its original purpose is unknown, it has long been used by the spies of Mordor to keep watch on its surroundings.