2021 Uttarakhand flood
The 2021 Uttarakhand flood, also known as the Chamoli disaster, began on 7 February 2021 in the environs of the Nanda Devi National Park, a UNESCO World Heritage Site in the outer Garhwal Himalayas in Uttarakhand state, India (Maps 1 and 2). It was caused by a large rock and ice avalanche consisting of material dislodged from Ronti peak.