West Rapti River

West Rapti
Kuwano
West Rapti river at Bhalubang
Location
CountryNepal, India
Physical characteristics
Source 
  locationRapti Zone, Nepal south of border of Rukum District with Rolpa District
  coordinates28°28′33″N 82°52′44″E / 28.4757°N 82.8788°E / 28.4757; 82.8788
  elevation3,500 m (11,500 ft)
Mouth 
  location
Ghaghara River
  coordinates
26°17′20″N 83°40′08″E / 26.289°N 83.669°E / 26.289; 83.669
  elevation
60 m (200 ft)
Basin size23,900 km2 (9,200 sq mi)
Discharge 
  average136 m3/s (4,800 cu ft/s)
Basin features
River systemGanges
Tributaries 
  leftLungri Khola, Jhimruk Khola, Ami River, Rohini River
  rightArun Khola,

The West Rapti, also known as the Kuwano, is a river which drains Rapti Zone in Mid-Western Region, Nepal, then Awadh and Bhojpur-Purvanchal regions of Uttar Pradesh state, India before joining the Ghaghara. It is a major left bank tributary of the Ganges, and is also known as the Karnali in Nepal.

The West Rapti is notable for janajati ethnic groups – Kham Magar among its highland sources and then Tharu in Inner Terai Deukhuri Valley, for its irrigation and hydroelectric potential, and for recurrent floods that led to its nickname "Gorakhpur's Sorrow".

Max depth 8.50

Min depth 10.7