Kumaun Himalayas, west-central section of the Himalayas in northern India, extending 200 miles (320 km) from the Sutlej River east to the Kali River. The range, comprising part of the Siwalik Range in the south and part of the Great Himalayas in the north, lies largely within the state of Uttarakhand, northwest of Nepal. It rises to 25,646 feet (7,817 metres) at Nanda Devi, the range’s highest peak, and to 25,446 feet (7,756 metres) at Kamet, near the Chinese border. At elevations above 14,000 feet (4,300 metres), snow covers the mountains throughout the year. Glaciers and snowmelt feed the headstreams of the Ganges River in torrents that rush through gorges and steep-sided ravines.
Below the permanent snow line—between 9,000 and 14,000 feet (2,750 and 4,300 metres)—is a cold windswept zone where herders take sheep and goats to graze during the short summers. At lower elevations, between 3,500 and 8,000 feet (1,100 and 2,400 metres), a temperate climate encourages year-round settlement; farmers raise livestock and cultivate terraced, irrigated slopes. Deodar cedar forests supply timber that is sold on the plains to the south, but in recent years deforestation has diminished timber yields and caused land degradation and erosion. Commerce centres on Dehra Dun, the capital of Uttarakhand, in the southern foothills. Indians from the lowlands use Mussoorie as a summer resort and educational centre, and Hindu pilgrims travel into the high mountains farther north to visit shrines at Badrinath, Kedarnath, and Gangotri.