The Salang is a 438-kilometre long river of Afghanistan, flowing through Parwan Province.
The Salang River originates on the south side of the central Hindu Kush mountains in the north-east of Salang Pass, which links the region to Kabul with the northern part of the country.
Its valley and the Salang Pass form an important international waterway.
In Jabal Saraj, the average annual flow module between 1961 and 1964 was about 763 millimeters per year, which is considered a high rate.
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