Topography Musakhel
Musakhel is located from 30° -17˘ to 31° -28˘ north latitudes and from 69° -28˘ to 70° -15˘ east longitudes. It is bounded in the north by the Dera Ismail Khan district, in the east by the Dera Ghazi Khan district, in the south by the Barkhan district, and in the west by the Loralai and the Zhob districts. Total area of the district is 5,727 square kilometers.
The district is mountainous for the most part with an exception of the main valley known as Musakhel Sahra. The two principal ranges running from north to south are the Surghar and Torghar branches of the Sulaiman range. The former lies in the west and comprises the Satyara (2405 m), Khiazah (2187 m), Charkundae (2316 m), and Kakal (1807 m). The Torghar lies in the east and includes the Nashtarghar or Mizri Roh (3109 m), Chappar, Salai, Narai, Tiar (2329 m), Buj (2323 m), Hazargat (2455 m), and Behu (2429 m).
The valley of Musakhel Sahra lies from south-west to north-east and it is enclosed on all sides by hills. It is divided into two parts by the Tang or Vihowa stream, the northern portion being called the Bar and the southern the Lar Sahra. Besides the Sahra it has a number of smaller valleys, the drainage of which, uniting below Khan Muhammad Kot, forms the Luni river or northern branches of the Sanghar. The Bar Sahra comprises tracts of Taláo, Ghund, Baha, Talai, and Ulmai. Lar Sahra, which is much smaller than Bar Sahra, is divided into two unequal portions by the Razana stream which joins the Toi near its exit from the Gat defile. The western portion contains the Loghai and Dámán tracts. The general elevation of the Sahra valley varies from 900-1,200 metres.
The general drainage of the valley is from west to east and is carried by three main streams: the Toi, Luni, and the Sanghar. In the north-east, the Zamarai country is drained by the smaller hill torrents: the Ramak and Guzai. The Toi is formed by the junction of the Razana, Tang, and Kharspún or Tangi Sar and is known beyond the boundaries of the district as the Vihowa river. The Sanghar, which at its sources is known as the Lang and Zarni, and in its further course, where the two tributaries meet, as the Drah, drains the Drug valley. The important affluents of the Lúni are the Rod, Lori Tang (made up of Dab and Khajúri), Kingri, and Sarin.