Excavations in 1972 on the west side of the hill revealed the remains of a large rectangular structure (15m x 41 m) with 2m thick walls made out of rubble stone with ashlar facing. At the south-west corner of the building there was a solid semi-circular tower (diameter 7m). The main part of the structure is a rectangular hall divided into two rows of five bays. There was a central row of four piers and two half-piers which would probably have supported a cross-vaulted roof. In a later phase an outer skin (2m wide) was added, making the wall a total of 4m thick. At the same time the round tower was converted into a square plan. According to the excavators, the place was occupied for a "fairly long" period, and suggest that it was probably part of the fortress built by Ali, (son of Zahir al-Umar) in the eighteenth century. The design of the building is quite compatible with other fortresses of the period, like Qalat Jiddin and Dayr Hanna.