El Oued (Arabic: اﻟﻮادي‎, Berber languages: Suf meaning the River), Souf or Oued Souf is a city, and the capital of El Oued Province, in Algeria. The oasis town is watered by an underground river, hence its name is El Oued which enables date palm cultivation and the rare use (for the desert) of brick construction for housing. As most roofs are domed, it is known as the “City of a Thousand Domes”. El Oued is located 400 miles (640 k...