The frankincense trees of Wadi Dawkah and the remains of the caravan oasis of Shisr/Wubar and the affiliated ports of Khor Rori and Al-Baleed vividly illustrate the trade in frankincense that flourished in this region for many centuries, as one of the most important trading activities of the ancient and medieval world.

Brief synthesis The four components of the Land of Frankincense dramatically illustrate the trade in frankincense that flourished in this region for many centuries. They constitute outstanding testimony to the civilizations in south Arabia since the Neolithic. The successive ports of Khor Rori (4th century BC to the 5th century AD) and Al Baleed (8th century till 16th century AD) and an outpost close to the Great Desert Rub Al Khali, Shisr, about 170 km inland, represent in a unique way the distribution of frankincense which was produced in the wadis of the coastal hinterland. All three sites were exceptionally fortified. Wadi Dawka is an outstanding example of the growth of the frankincense tree (boswellia sacra) from which the resin was produced, collected and traded. The port of Khor Rori (the Moscha Limen of classical geographical texts) lies 40 km to the east of Salalah on a hilltop on the eastern bank of a sweet-water outlet (khor). About 400 metres from the open sea, it dominates the khor which opens to the sea and served as a natural harbour. The remains of the fortress are located on a rocky spur running east-west, forming part of a wider defensive system, details of which are still evident. The walls have dressed stone faces with rubble cores. The most heavily fortified part is on the north, where the entrance is located, itself a massive structure with three successive gates on the steep entry path. It is flanked by the remains of towers. The port was refounded at…