wadi sirhan
- Wadi Sirhan. Wadi Sirhan is the name of a wadi (valley) that runs southeast from the ancient site of Al-Azrak in eastern Jordan that eventually crosses the border into Saudi Arabia and ends at the wells of Maybuu. It is about 140 kn/187 miles in length, and 5-18 kilometers (13-11) miles wide. (Encyclopedia of Islam).