K2, also known as Ketu by the locals, is the second-highest mountain on Earth (after Mount Everest). It is part of the Karakoram segment of the Himalayan range, and is located in the Kashmir region, on the border between Gilgit-Baltistan, Pakistan, and the Taxkorgan Tajik Autonomous County of Xinjiang, China.
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K2 is also known as Mount Godwin-Austen which is situated in the Karakoram Range. The world's second highest peak after the Mt.Everest, it reaches 28,251 ft (8,611 m); it lies partly in China and partly in the Pakistani-administered portion of the Kashmir region.
This Mountain was discovered and measured in 1856 by Col. T.G. Montgomerie and was given the symbol K2 because it was the second peak to be measured for height in the Karakoram Range. In 1954 the Italians Achille Compagnoni and Lino Lacedelli became the first climbers to reach its summit.