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2021 Uttarakhand flood
Fatal flooding in India / From Wikipedia, the free encyclopedia
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The 2021 Uttarakhand flood, also known as the Chamoli disaster,[1] began on 7 February 2021 in the environs of the Nanda Devi National Park, a UNESCO World Heritage Site[2] in the outer Garhwal Himalayas in Uttarakhand state, India (Maps 1 and 2).[3] It was caused by a large rock and ice avalanche consisting of material dislodged from Ronti peak.[4][5] It caused flooding in the Chamoli district, most notably in the Rishiganga river, the Dhauliganga river, and in turn the Alaknanda—the major headstream of the Ganges (Maps 2 and 3).[6][7] The disaster left over 200 killed or missing. Most were workers at the Tapovan dam site.
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![Thumb image](http://upload.wikimedia.org/wikipedia/commons/thumb/6/69/India_Uttarakhand_Alaknanda_River_Valley.jpg/640px-India_Uttarakhand_Alaknanda_River_Valley.jpg)
![Thumb image](http://upload.wikimedia.org/wikipedia/commons/thumb/1/1a/HeadwatersGanges1.jpg/640px-HeadwatersGanges1.jpg)
![Thumb image](http://upload.wikimedia.org/wikipedia/commons/thumb/c/ce/Nanda_Devi_-_Hidden_Summit%2C_Uttarakhand_India_2013.jpg/640px-Nanda_Devi_-_Hidden_Summit%2C_Uttarakhand_India_2013.jpg)
![Thumb image](http://upload.wikimedia.org/wikipedia/commons/thumb/6/6d/Dhauliganga_at_Vishnuprayag.jpg/640px-Dhauliganga_at_Vishnuprayag.jpg)
![Thumb image](http://upload.wikimedia.org/wikipedia/commons/thumb/b/b6/Dhauliganga_and_Rishiganga_Valleys.jpg/640px-Dhauliganga_and_Rishiganga_Valleys.jpg)