the Himalaya range, and the climate and vegetation vary greatly with elevation, from glaciers at the highest elevations to subtropical forests at the lower elevations. The highest elevations are covered by ice and bare rock. Below them, between are the western Himalayan alpine shrub and meadows. The temperate western Himalayan subalpine conifer forests grow just below the tree line. At elevation they transition to the temperate western Himalayan broadleaf forests, which lie in a belt from elevation. Below elevation lie the Himalayan subtropical pine forests. The Upper Gangetic Plains moist deciduous forests and the drier Terai-Duar savanna and grasslands cover the lowlands along the Uttar Pradesh border in a belt locally known as Bhabar. These lowland forests have mostly been cleared for agriculture, but a few pockets remain. In June 2013 several days of extremely heavy rain caused devastating floods in the region, resulting in more than 5000 people missing and presumed dead. The flooding was referred to in the Indian media as a "Himalayan Tsunami". On 7 February 2021, floods emerged from the Nanda Devi mountain glaciers, devastating locations along the Rishi Ganga, Dhauli Ganga and Alaknanda Rivers, resulting in many people reported missing or killed, yet to be numbered. The damages include Rini village, several river dams and the Tapovan Vishnugad Hydropower Plant. Flora and fauna Uttarakhand has a diversity of flora and fauna. It has a recorded forest area of , which constitutes 65% of the total area of the state. Uttarakhand is home to rare species of plants and animals, many of which are protected by sanctuaries and reserves. National parks in Uttarakhand include the Jim Corbett National Park (the oldest national park of India) in Nainital and Pauri Garhwal District, and Valley of Flowers National Park & Nanda Devi National Park in Chamoli District, which together are a UNESCO World Heritage Site. A number of plant species in the valley are internationally threatened, including several that have not been recorded from elsewhere in Uttarakhand. Rajaji National Park in Haridwar, Dehradun and Pauri Garhwal District and Govind Pashu Vihar National Park & Gangotri National Park in Uttarkashi District are some other protected areas in the state. Leopards are found in areas that are abundant in hills but may also venture into the lowland jungles. Smaller felines include the jungle cat, fishing cat, and leopard cat. Other mammals include four kinds of deer (barking, sambar, hog and