Mountain Madness interests. While leading Mountain Madness, Fischer became renowned for his ascents of the world's highest mountains made without the use of supplemental oxygen. Fischer and Wally Berg were the first Americans to summit Lhotse, the world's fourth highest mountain (27,940 feet / 8516 m), located next to Mount Everest. He and Ed Viesturs were the first Americans to summit K2, (28,251 feet / 8611m) in the Karakoram of Pakistan without supplemental oxygen. During his stewardship of Mountain Madness, Fischer led social and environmental initiatives to help people in the countries in which Mountain Madness traveled. As the leaders of the
Geography of Gilgit–Baltistan the 19th-highest mountain in the world. Main rivers in the Gilgit District are: There are many tributaries of the aforementioned rivers, some of which are the Ghujerab River, the Shimshal River, the Hispar River, and the Naltar River. The capital of the Skardu District is Skardu town. Skardu was part of Ladakh before the partition of Kashmir in 1948. The Baltoro Muztagh, the subrange of the Karakoram that includes the mighty peaks of K2 (8,611 m), Broad Peak (8,047 m), the Gasherbrums (8,000+ meters) and Masherbrum (7,821 m), is included in the Skardu District. Askole is the last settlement in