Kala Dhaka lies next to the Agror valley of Oghi area to the east and by Tanawal to the south. The range has a length of 25 to 30 miles from north to south and a height of 8,000 feet above sea-level. The river Indus goes through the most northern but and then moves to the south. Between the river and the top of the range the western areas are occupied by some sections of the Yusufzai tribe. The rest of the range is held by another indigenous aboriginal tribe, the Swatis. The Black Mountain has long narrow ridges with higher peaks every now and again. It also has valleys in which there are villages where the tribes live. The upper parts of the ridge are covered with thick forests of pine, oak, sycamore, horse-chestnut, and wild cherry; but the slopes are stony and barren.