Jogin I, NorthRidge, 1983. Eight Japanese led by Kaoru Aoyagi established Base Camp at 15,425 feet on Kedar Tal on September 8, 1983, Advance Base at 16,075 feet on the 11th and Camps I and II at 18,550 and 19,850 feet on the 18th and 22nd. On September 30, 1983 Aoyagi, Masataka Suzuki, Yoshihiro Oshima and Norihiro Tsuda climbed the knife-edged north ridge to the summit (6465 meters, 21,211 feet). They were followed on October 3, 1983 by Shigeru Nakata, Hiromichi Nomura and Hiroshi Togawa.