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 Ladakh heavily glaciated. The Shyok River rises near the Karakoram Pass. The region comprising the valley of Shyok and Nubra Rivers is known as Nubra. The Karakoram Range in Ladakh is not as mighty as in Baltistan. The massifs to the north and east of the Nubra-Siachen valley include the Apsarasas group (highest point 7245 m), the Rimo group (highest point 7385 m) and the Teram Kangri group (highest point 7464 m), together with Mamostong Kangri (7526m) and Singhi Kangri (7202 m.) North of the Karakoram lie the Kun Lun Mountains. Thus, between Leh and eastern Central Asia, there is a