In recent years surveys have uncovered Palaeolithic and Neolithic sites on the eastern coast. Main Palaeolithic sites include Saiwan-Ghunaim in the Barr al-Hikman. Archaeological remains are particularly numerous for the Bronze Age Umm an-Nar and Wadi Suq periods. Sites such as Bat show professional wheel-turned pottery, excellent hand-made stone vessels, a metals industry and monumental architecture