'Kabul River' or 'Kabal River' (
Persian: دریای کابل) is a river that rises in the
Sanglakh Range of
Afghanistan, separated from the watershed of the
Helmand by the
Unai Pass. It is the main river in the eastern part of Afghanistan. It flows 700 km before joining the Indus River near
Attock . It passes through the cities of
Kabul,
Chaharbagh,
Jalalabad, and (flowing into Pakistan some 30 km north of the
Khyber Pass)
Nowshera. The major
tributaries of the Kabul River are the
Logar,
Panjshir,
Kunar and
Alingar rivers.
The Kabul river itself is little more than a trickle for most of the year, but swells in summer due to melting snows. Its largest tributary is the Kunar, which starts out as the
Mastuj River, flowing from the Chiantar glacier in
Chitral, Pakistan and once it flows south into Afghanistan it is met by the Bashgal river flowing from
Nurestan. The Kunar meets the Kabul near
Jalalabad. In spite of the Kunar carrying more water than the Kabul, the river continues as the Kabul River after this confluence, mainly for the political and historical significance of the name.
This river is attested in the
Rig Veda, the earliest scripture of
Hinduism, under the name ''Kubhā'' (many of the rivers of Afghanistan are mentioned in the Rig Veda). The Sanskrit word later changed to ''Kābul''.