Gasherbrum II Gasherbrum II Gasherbrum II (); surveyed as K4, is the 13th highest mountain in the world at above sea level. It is the third-highest peak of the Gasherbrum massif, and is located in the Karakoram, on the border between Gilgit–Baltistan province, Pakistan, and Xinjiang, China. The mountain was first climbed on July 7, 1956, by an Austrian expedition which included Fritz Moravec, Josef Larch, and Hans Willenpart. Gasherbrum II is located on the border of Gilgit–Baltistan, Pakistan, and Xinjiang, China. It is part of the Karakoram mountain range in the Himalayas, and located at the top of the Baltoro Glacier.
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