Satluj River

Sutlej / Satluj
सतलुज / ستلُج
River
River Sutlej in Rupnagar, Punjab, India
Country	India,  Pakistan
Tributaries
- left	Baspa
- right	Spiti, Beas
Source	Lake Rakshastal
- elevation	4,575 m (15,010 ft)
- coordinates	30°50′39″N 81°12′17″E / 30.84417°N 81.20472°E / 30.84417; 81.20472
Mouth	Confluence with Chenab to form the Panjnad River
- location	Bahawalpur district, Punjab, Pakistan
- elevation	0 m (0 ft)
- coordinates	29°20′57″N 71°1′41″E / 29.34917°N 71.02806°E / 29.34917; 71.02806Coordinates: 29°20′57″N 71°1′41″E / 29.34917°N 71.02806°E / 29.34917; 71.02806
Length	1,500 km (932 mi) approx.
Basin	395,000 km2 (152,510 sq mi) approx.
Discharge	for Ropar
- average	500 m3/s (17,657 cu ft/s)
The Sutlej is a tributary to the Indus

The Sutlej River (alternatively spelled as Satluj River) (Hindi: सतलुज, Punjabi: ਸਤਲੁਜ, Sanskrit : शतद्रु (shatadru) Urdu: درياۓ ستلُج‎ ) is the longest of the five rivers that flow through the historic crossroads region of Punjab in northern India and Pakistan. The Sutlej River is also known as Satadree. It is the easternmost tributary of the Indus River.

The waters of the Sutlej are allocated to India under the Indus Waters Treaty between India and Pakistan, and are mostly diverted to irrigation canals in India. There are several major hydroelectric projects on the Sutlej, including the 1,000 MW Bhakra Dam, the 1,000 MW Karcham Wangtoo Hydroelectric Plant, and the 1,530 MW Nathpa Jhakri Dam.

The Upper Sutlej Valley, called Langqên Zangbo in Tibet, was once known as the Garuda Valley by the Zhangzhung, the ancient civilization of western Tibet. The Garuda Valley was the centre of their empire, which stretched many miles into the nearby Himalayas. The Zhangzhung built a towering palace in the Upper Sutlej Valley called Kyunglung, the ruins of which still exist today near the village of Moincêr, southwest of Mount Kailash (Mount Ti-se). Eventually, the Zhangzhung were conquered by the Tibetan Empire.