Arun River

The Arun River (Nepali: अरुण नदी) is a river that flows from Tibet to Nepal. It is a part of Koshi River which flows into India. It is known as Phung Chu or Bum-chu at Tibet, from where it starts. Around 37 percent of the total water of Koshi River comes from this river.^[1][2]

Arun Bum-chu  (Chinese)
View of Arun River from Leguwa VDC of Nepal.
Location of mouth in Nepal
Location
Country	Nepal, China
State	Tibet
Physical characteristics
Source	Gutso
- location	Tibet
Mouth	Confluence with Sun Kosi and Tamur River to form Sapta Kosi
- location	Tribenighat, Nepal
- coordinates	26°54′47″N 87°09′25″E
Discharge
- location	Kosi river
Basin features
Tributaries
- left	Yeru Tsanpo, Trakar-chu
- right	Barun River