Bolan Pass is a valley and a natural gateway through the Toba Kakar range in Balochistan province of Pakistan. It is situated 120 km (75 mi) south of Pakistan's border with Afghanistan. The pass is an 89 km (55 mi) stretch of the Bolan River valley from Rindli in the south to Darwāza near Kolpur in the north. It is made up of a number of narrow gorges and stretches. It connects Quetta with Sibi by road and railway.

Balochistan is a province of Pakistan. Located in the southwestern region of the country, Balochistan is the largest province of Pakistan by land area but is the least populated one. It is bordered by the Pakistani provinces of Khyber Pakhtunkhwa to the north-east, Punjab to the east and Sindh to the south-east; shares international borders with Iran to the west and Afghanistan to the north; and is bound by the Arabian Sea to the south. Balochistan is an extensive plateau of rough terrain divided into basins by ranges of sufficient heights and ruggedness. It has the world's largest deep sea port, the Port of Gwadar lying in the Arabian Sea.