Asia, Nepal, Langtang Lirung, South Ridge
Publication Year: 1981.
Langtang Lirung, South Ridge. All six members of a Japanese expedition led by Iwao Otsuka on October 28 climbed to the summit (7245 meters, 23,770 feet) via a new route, the south ridge from Camp IV with a bivouac.
Michael J. Cheney, Himalayan Club