Bolan Pass or Bholan Pass (both: bōlänˈ), 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.
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The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.
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.
The Great Soviet Encyclopedia, 3rd Edition (1970-1979). © 2010 The Gale Group, Inc. All rights reserved.
a mountain pass in W central Pakistan through the Brahui Range, between Sibi and Quetta, rising to 1800 m (5900 ft.)
Collins Discovery Encyclopedia, 1st edition © HarperCollins Publishers 2005