This gigantic work, the line of which may still be traced throughout its course, was formerly called the Khandak Sabur or " Sapor's trench," being ascribed to the Sassanian king, Shapur I.
Sabur, a conspicuous mass in the extreme south, is 9900 ft., with a fall to the Taiz valley of 5000 ft.; farther north several points in the mountains above Ibb and Yarim attain a height of 10,500 ft., and J.
Sabur near Taiz, where Botta describes it as forming an extensive forest and growing to a large size; it is also found in the range overlooking the W.
Sabur, and in the Yafa district north-east of Aden.
Sabur and the mountainous Tountry round Taiz.