Helmand River
| Helmand | |
|---|---|
Helmand and Boghra Canal beyond it | |
Map of the Helmand drainage basin | |
| Location | |
| Countries | Afghanistan and Iran |
| Physical characteristics | |
| Source | |
| • location | Hindu Kush mountains |
| Mouth | |
• location | Hamun Lake |
| Length | 1,150 km (710 mi) |
| Basin size | Sistan Basin |
| Basin features | |
| Tributaries | |
| • left | Arghandab River |
| • right | Khash River Chagay River |
The Helmand river, also historically known as the Etymandros, is the longest river in Afghanistan and the primary watershed for the endorheic Sistan Basin. It originates in the Sanglakh Range of the Hindu Kush mountains in the northeastern part of Maidan Wardak Province, where it is separated from the watershed of the Kabul River by the Unai Pass. The Helmand feeds into the Hamun Lake on the border of Afghanistan and Iran.