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Page:Provincial geographies of India (Volume 1).djvu/47

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MOUNTAINS, HILLS, AND PLAINS

the general elevation of the chain drops steadily. But Fort Munro, the hill station of the Dera Ghazi Khan district, 200 miles south of the Takht, still stands 6300 feet above sea level, and it looks across at the fine peak of Ekbhai, which is more than 1000 feet higher. In the south of the Dera Ghazi Khan district the general level of the chain is low, and the Giandari hill, though only 4160 feet above the sea, stands out conspicuously. Finally near where the three jurisdictions meet the hills melt into the Kachh Gandava plain. Sir Thomas Holdich's description of the rugged Pathan hills applies also to the Suliman range. Kaisargarh is a fine limestone mountain crowned by a fores't of the edible chilgoza pine. But the ordinary tree growth, where found at all, is of a much humbler kind, consisting of gnarled olives and dwarf palms.

Passes and torrents in Suliman Hills.— The drainage of the western slopes of the Suliman range finding no exit on that side has had to wear out ways for itself towards the plains which lie between the foot of the hills and the Indus. This is the explanation of the large number of passes, about one hundred, which lead from the plains into the Suliman hills. The chief from north to south are the Vehoa, the Sangarh, the Khair, the Kaha, the Chachar, and the Siri, called from the torrents which flow through them to the plains. There is an easy route through the Chachar to Biluchistan. But unfortunately the water of the torrent is brackish.

Sub Himalaya or Siwaliks.— In its lowest ridges the Himalaya drops to a height of about 5000 feet. But the traveller to any of the summer resorts in the mountains passes through a zone of lower hills interspersed sometimes with valleys or "duns." These consist of Tertiary sandstones, clays, and boulder conglomerates, the debris in fact which the Himalaya has dropped in the course