Hisahi Ishiguro along
with Yasuo Kato made the first post-monsoon success on the mountain on
October 26th, 1970...
Michio Yuasa led the
48 man 1973 Japanese Expedition that attempted, both the SW Face and
South Col route. The SW Face party reaches 27,200 feet (8,300 meters)
before giving up. Success is achieved on the South Col route when
Hisahi Ishiguro and Yasuo Kato reach the summit, the first
post-monsoon success on the mountain.