Baltoro Glacier Baltoro Glacier The Baltoro Glacier (), at in length, is one of the longest glaciers outside the polar regions. It is located in the Gilgit-Baltistan region of Pakistan Occupied Kashmir. It runs through part of the Karakoram mountain range. The Baltoro Muztagh lies to the south and east of the glacier, while the Masherbrum Mountains lie to the south. At 8,611 m (28,251 ft), K2 is the highest mountain in the region, and three other Eight thousanders within 20 km. The glacier gives rise to the Shigar River, which is a tributary of the Indus River. Several large tributary glaciers
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