Yarlung Tsangpo Grand Canyon
The Yarlung Tsangpo Grand Canyon or Yarlung Zangbo Grand Canyon (Chinese: 雅鲁藏布大峡谷; pinyin: Yǎlǔzàngbù Dàxiágǔ) or simply the Tsangpo Canyon, Brahmaputra Canyon or Tsangpo Gorge, along the Yarlung Tsangpo River in Tibet, China, is the deepest canyon in the world, and at 504.6 km (314 miles) is slightly longer than the Grand Canyon in the United States, making it one of the world's largest. The Yarlung Tsangpo (Tibetan name for the upper course of the Brahmaputra) originates near Mount Kailash and runs east for about 1700 km, draining a northern section of the Himalayas before it enters the gorge just downstream of Pei, Tibet near the settlement of Zhibe. The canyon has a length of about 150 miles (240 km) as the gorge bends around Mount Namcha Barwa (7782 m) and cuts its way through the eastern Himalayan range. Its waters drop from about 2,900 m near Pei to about 1,500 m at the end of the Upper Gorge where the Po Tsangpo River enters. The river continues through the Lower Gorge to the Indian border at an elevation of 660 m. The river then enters Arunachal Pradesh and eventually becomes the Brahmaputra.
As the canyon passes between the peaks of the Namcha Barwa (Namjabarwa) and Gyala Peri mountains, it reaches an average depth of about 16,000 feet (5,000 m) around Namcha Barwa. The canyon's average depth overall is about 7,440 feet (2,268 m), the deepest depth reaches 19,714 feet (6,009 m). This is the deepest canyon on land. This part of the canyon is at 29°46′11″N 94°59′23″E / 29.769742°N 94.989853°E. Namcha Barwa, 25,531 feet (7782m) high, is at 29°37′33″N 95°03′26″E / 29.62583°N 95.05722°E, and Gyala Peri, at 23,733 feet(7234m), is at 29°48′48″N 94°58′02″E / 29.81333°N 94.96722°E.
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