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Geladandong (also spelled Geladaindong or Geladaintong) is a snow-covered mountain (or massif) located in southwestern Qinghai, China, near that province's border with Tibet Autonomous Region. It is noted as the tallest mountain in the Tanggula Mountain Range of the Tibetan Plateau (with an elevation of 6621 meters above sea level), as well as for being the source of the Yangtze River, which begins with glaciers on its surface.

The mountain's name is Geladaindong in the Tibetan language. The name in Chinese is 各拉丹东 (pinyin: Gèlādāndōng) or 各拉丹东峰 (pinyin: Gèlādāndōng Fēng; literally "Geladandong Peak").

Contents 1 Location 2 Climate 3 Wildlife 4 Recreation 5 External links

Geladandong is located at 91°E and 33.5°N, in an exclave of Haixi Prefecture, in the middle section of Tanggula Shan (the Tanggula Mountain Range). It is close to the Gyêgu (Yushu) Tibetan Autonomous Prefecture and directly across the border from Amdo County, Nagqu Prefecture, Tibet Autonomous Region. It is encircled by over twenty high peaks exceeding 6000 meters in height. It is approximately 50 km long from north to south and approximately 20 km wide from west to east, covering a circumference of approximately 670 square km with ice and snow, engulfed by over 40 modern glaciers.

Due to the area's arid climate, its annual precipitation is only 200 mm. In the high-altitude area of over 5000 meters, however, there exists violent local air circulation and its yearly precipitation remains to be several hundred mm more than that in the foothill area. Thus, snow and hailstones frequently fall from the sky and cover up the earth, presenting good conditions for the development of glaciers. The average temperature is -5°C, and the hottest months are from June to August with a temperature of over 20°C, while the coldest month is January, with a temperature of -18°C. In the high-altitude area of over 5000 m, it remains cold all year round, the lowest temperature being less than -30°C.

The mountain serves as a natural shelter for more than twenty kinds of wild animals, including the white-lipped deer, Asiatic wild ass, snow leopard, and alpine snowcock.

Although a dangerous peak to climb, Geladandong is popular among Chinese mountain climbers. In 1994, the Mountaineering Association of Peking University (MAPKU) became the first Chinese climbing team to reach the summit of Geladandong.

• Geladandong page
• Geladaindong page
• Peking University mountaineering team's 1994 Geladaindong Climbing Photos page