Rishiganga
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Rishiganga Rishi Ganga |
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| Data | ||
| location | Uttarakhand ( India ) | |
| River system | Ganges | |
| Drain over | Dhauliganga → Alaknanda → Ganges → Indian Ocean | |
| origin |
Dakhni Rishi Gal 30 ° 21 '59 " N , 79 ° 55' 49" E |
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| Source height | approx. 4400 m | |
| muzzle |
Dhauliganga coordinates: 30 ° 29 '16 " N , 79 ° 41' 26" E 30 ° 29 '16 " N , 79 ° 41' 26" E |
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| Mouth height | approx. 2000 m | |
| Height difference | approx. 2400 m | |
| Bottom slope | approx. 80 ‰ | |
| length | approx. 30 km | |
| Left tributaries | Trisul Nala | |
The Rishiganga is a left tributary of the Dhauliganga in the Indian state of Uttarakhand .
The mountain river drains the glaciated west side of the Nanda Devi group . The Rishiganga arises at an altitude of 4400 m at the lower end of the Dakhni Rishi Gal glacier below the west face of the Nanda Devi ( 7816 m ). The river flows mainly in a westerly direction through the high mountains. It flows through a narrow gorge before flowing into the Dhauliganga after about 30 kilometers at an altitude of 2000 m . The catchment area of the Rishiganga is bounded in the south by the mountains Trisul ( 7120 m ) and Nanda Ghunti ( 6309 m ), in the north by Kalanka ( 6931 m ) and Dunagiri ( 7066 m ).
The Rishiganga used to be the only access to the Nanda Devi and its neighboring peaks. The Rishiganga gorge was a first challenge for the mountaineers.
The water-rich river offers great potential for hydropower . Two larger hydropower projects are being planned on the Rishiganga: Rishiganga I (70 MW) and Rishiganga II (35 MW).
