Balochistan
Plateau East of the Sulaiman and Kirthar ranges
lies the Balochistan Plateau with an average altitude
of 2,000 ft.(610 m). The physical features of the
plateau are very varied, but mountains, plateaus
and basins predominate the scene. The Mountains
spread in various directions, attaining height 6,000-
11,000 ft. (1,830-3,335 m).
In the north are the Toba Kakar Range and Chagai
hills which form the border of Pakistan with Afghanistan
for some distance. In the west-central part is the
Siahan Range and in the east-southern corner the
Mekran Range. Except for the Toba Kakar Range, which
is dotted here and there with juniper, tamarisk
and pistachio trees, all other ranges are naked
and bleak. The mountains are carved off by innumerable
channels and hill torrents which contain water only
after rains. Very little water, however, reaches
the basins lying on their foot. Comparatively more
important rivers are Zhob, Bolan and Mulla, located
in the north-eastern portion of Balochistan.
The valleys of the main streams and their tributaries
exhibit similar feature and consist of flat plains
of alluvial soil in the centre, with a pebbly slope
of varying length rising on either sides of the
mountains. It is from these pebbly beds that the
supply of water for irrigation is chiefly obtained
through Karezes. Zhob, Bloan and their tributaries
have formed two important alluvial basins of Balochistan,
namely, the Lorlai basin and Quetta basin, which
together produce a major portion of Balochistan's
crops and fruits: wheat, barley, maize, lucerne,
potato, apple, apricot, peach, almond, grape and
pomegranate. Kalat Plateau at 7,000-8,000 ft. (2,135-2,440
m), in the centre of Balochistan is the most important
plateau.
The largest desert is found in western Balochistan.
This is an area of inland drainage and dry lakes
(hamuns), the largest of which is Hamun-i-Mashkhel,
which is 54 miles long and 22 miles wide. The surface
is littered with sun-cracked clay, oxidized pebbles,
salty marshes and crescent-shaped moving sand dunes.
The area is known particularly for its constant
mirage and sudden severe sand-storms. Being outside
the sphere of monsoon current, Balochistan receives
scanty and irregular rainfall (4 inches); the temperature
is very high in summer and very low in winter.
Owing to continuous draught, there is very little
vegetation. Most of the people, therefore, lead
nomadic life, raising camels, sheep and goats. Balochistan
is, however, fortunate to have considerable mineral
wealth of natural gas, coal, chromate, lead, sulphur
and marble. The reserves of natural gas at Sui are
among the largest in the world. The gas is piped
to Karachi, Hyderabad, Sukkur, Multan, Faisalabad,
Lahore, Rawalpindi and Quetta for use as industrial
power.