One of the principal settlements of Arabia during the 1^st millennium B.C. It is situated northeast of the modern town of Al-Ula, and was known as an important enter port center. Strategically it was located on the ancient spice road connecting Southern Arabia with Egypt, Syria and Mesopotamia.

Dadan had been mentioned in the Old Testament, Assyrian records and old Arabic inscriptions. According to these epigraphic sources it is believed that the town was the capital of Dadan Kingdom during the 1^st half of the 1^st millennium B.C., then it became a Lehyanite center, before it was abandoned during the 1^st century B.C.

Archaeological excavations conducted at the site by a team from King Saud University revealed some structures of religious nature, and identified different sequential phases of occupations of the site. It has also yielded a number of Dadanite and Lehyanite inscriptions, along with pottery, coins, statues, altars, sculptures, and alabaster objects.