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Bholan Pass(both: bōlän`), gap in the central Brahui Range, W Pakistan; c.60 mi (100 km) long, alt. 5,880 ft (1,792 m). A railroad and highway cross the pass en route to the Afghanistan frontier. Strategically located, traders, invaders, and nomadic tribes used it as a gateway to India.
a mountain pass in Pakistan, in the Central Brahui Range (at the juncture of the Makran and Sulaiman Ranges in the eastern Iranian highland). The Bolan Pass is formed by the Bolan gorge (elevation, 1,792 m), the valley of the Bolan River, and the valley of a source of the Shirinab River. A railroad and a highway leading from Sukkur to Quetta and on to the Afghanistan border have been laid through the Bolan Pass.