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
Balti language "Byaltae" from , which, in Tibetan, means "water gorge." The historian Ptolemy, also a general in the army of Alexander the Great, named the region "Byaltae" in his book. In fact, Baltistan is the Persian translation of "Baltiyul", "homeland of Balti." Balti people are settled on both banks of the Indus River from Kargil district in the east to Haramosh Peak in the west and from the Karakoram in the north to Deosai National Park in the south. The Balti ethnicity is primarily Tibetan in origin, with some Dardic admixture. Balti is a Tibetic language. In some rural areas, the