Helmund

Helmund,

river, Afghanistan: see HelmandHelmand
or Helmund
, river, c.700 mi (1,130 km) long, rising in the Hindu Kush Mts., NE Afghanistan and flowing generally SW to the Sistan basin, SW Afghanistan, where it helps form the Hamun-i-Helmand (Sistan Lake), a marshy lake that extends into Iran; longest river
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