Numbur. A joint Nepalese-Swiss expedition was co-led by Jacques Bouvier and Rinze Pasang Lama. There were seven Swiss and four Nepalese trying the 1963 Japanese route on the southwest ridge. They failed at 22,000 feet on May 21, having climbed from Camp II at 20,500 feet. The mountain is 22,815 feet high.
Michael J. Cheney, Himalayan Club