K2 K2 K2 (, "Kai Ṭū"), also known as Mount Godwin-Austen or Chhogori (Balti and ), at above sea level, is the second highest mountain in the world, after Mount Everest at . It is located on the ChinaPakistan border between Baltistan in the Gilgit-Baltistan region of northern Pakistan, and the Taxkorgan Tajik Autonomous County of Xinjiang, China. K2 is the highest point of the Karakoram range and the highest point in both Pakistan and Xinjiang. K2 is known as the "Savage Mountain" due to the extreme difficulty of ascent. It has the second-highest fatality rate among the eight thousanders, with
K2 incorrectly showing that K2 was taller than Mount Everest, and therefore the tallest mountain in the world. A corrected measurement was made in 1987, but by that point the claim that K2 was the tallest mountain in the world had already made it into many news reports and reference works. The mountains of K2 and Broad Peak, and the area westward to the lower reaches of Sarpo Laggo glacier consist of metamorphic rocks, known as the "K2 Gneiss" and part of the Karakoram Metamorphic Complex. The K2 Gneiss consists of a mixture of orthogneiss and biotite-rich paragneiss. On the south