Huayna Potosí, Illampu, Cordillera Real. There were two Japanese expeditions to the Cordillera Real. The expedition of the Medical Department of Nihon University was led by Yoshihiko Kawakubo and Kenichi Shibata and had twelve other members. They climbed Huayna Potosí (19,996 feet), Illampu (20,873 feet) and Pico Schulze (19,466 feet). The Old Boys of Meguro High School Alpine Club expedition was composed of Michio Yamamoto and Makoto Yamagishi. They climbed Huayna Potosí on July 7, with a bivouac in a crevasse just under the summit. They then climbed Illampu Sur with a high camp at 17,400 feet and bivouacs at 17,400 and 19,700 feet. They climbed to the summit on July 28.
Ichiro Yoshizawa, A.A.C. and Japanese Alpine Club