Çavuştepe or Sardurihinilli is an ancient fortified site in the Gürpınar district of Van Province in Turkey's Eastern Anatolia region. It is located approximately 25 kilometers southeast of Van along the road leading to the city of Hakkâri, in a valley once known as Hayots Dzor in historic Armenia. It was used by the Urartian kings as a fortress during the 8th century BC.
In Armenian folklore it is the fortress built by Hayk, the legendary founder of the Armenian nation, close to the site where he slew the invading Babylonian King Bel or possibly Nimrod.
Coordinates 38°21'9.621" N 43°27'35.994" E