Bojohangur Duan Asir II or UltarSar Attempt. A Japanese expedition led by Tsuneo Hasegawa had hoped to make the first ascent of Bojohangur Duan Asir II (7388 meters, 24,240 feet). They reached Base Camp at 3300 meters on the Ultar Glacier on September 11. Rope was fixed up the southwest face to the south ridge. Camp III was at 6020 meters. On October 13, Hasegawa, Osamu Tagaya and Kiyotaka Hoshino began a summit try. They bivouacked at 6700 meters and on the third day got to 7020 meters but had to give up there with deteriorating weather and threatened frostbite.