The Salang Pass is the primary mountain pass connecting northern Afghanistan with Parwan Province, with onward connections to Kabul Province, southern Afghanistan, and to the Pakistani province of Khyber Pakhtunkhwa. Located on the border of Parwan Province and Baghlan Province, it is just to the East of the Kushan Pass, and both of them were of great importance in early times as they provided the most direct connections between the Kabul region with northern Afghanistan or Tokharistan. The Salang River originates nearby and flows south.

Parwan also spelled Parvan is one of the 34 provinces of Afghanistan. It is the largest province of the Greater Parwan region and has a population of about 751,000. The province is multi-ethnic and mostly rural society. The province is divided into ten districts. The town of Imam Abu Hanifa serves as the provincial capital. The province is located north of Kabul Province and south of Baghlan Province, west of Panjshir Province and Kapisa Province, and east of Maidan Wardak Province and Bamyan Province. The province's famous tourism attraction is the Golghondi Hill, also known as “the flower hill,” located in Imam Azam about an hour away from the capital city of Kabul. After Panjshir this province has been considered as one of the main raising points of Afghanistan War against Soviets.