Sarn Castle

Sarn Castle or Amon Sarn was an old tower and a ruin on the hill of the same name opposite the mannish town of Iach Mardi in the Sarn Cantons.The original tower had been built by Gil-galad and was set in the eastern boundary of the kingdom of Lindon along the Baranduin, he decided to fortify the place.During the War of the Elves and Sauron in S.A. 1699, when Sauron's armies swept across the ford a quartet of Demontrolls took the Elven spire by storm. After Sauron was driven from Eriador, the blood of the three feadegnir— who died destroying Amon Sarn—still tainted the ruins, and the Elves gave up the idea of fortifying this part of their frontier.Dwarves from Khazad-dum later built a small tower near the poisoned site, and held it for the rest of the Age.