The Baltoro Glacier, at 62 kilometers long, is one of the longest glaciers outside of the polar regions. It is in Baltistan, in the Northern Areas of Pakistan, and runs through part of the Karakoram mountain range. The Baltoro Muztagh is to the north 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 others within 20 km top 8,000 m.