, a town of the Ḥid̲j̲āz in north-western Arabia, lying in what was the early Islamic Wādī ’l-Ḳurā, at the southeastern end of the Ḥarrat al-ʿUwayriḍ and below a hill called Umm Nāṣir (lat. 26° 38ʹ N., long. 37° 57ʹ E., altitude 674 m/2,210 feet).
The area is extremely rich archaeologically, and clearly flourished in pre-Islamic times as a major centre along the caravan route southwards from Syria, with ancient Dedan at the base of the Ḏj̲abal al-Ḵh̲urayba, to the south of what was al-Ḥid̲j̲r [q.v.] and is now Madāʾin Ṣāliḥ some 18 km/12 miles north of al-ʿUlā. The mediaeval Isl…