West Rapti River

West Rapti Kuwano
West Rapti river at Bhalubang
Location
Country	Nepal, India
Physical characteristics
Source
• location	Rapti Zone, Nepal south of border of Rukum District with Rolpa District
• coordinates	28°28′33″N 82°52′44″E / 28.4757°N 82.8788°E / 28.4757; 82.8788
• elevation	3,500 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 size	23,900 km2 (9,200 sq mi)
Discharge
• average	136 m3/s (4,800 cu ft/s)
Basin features
River system	Ganges
Tributaries
• left	Lungri Khola, Jhimruk Khola, Ami River, Rohini River
• right	Arun 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, and finally 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