P 6000 and Z3, Durung Drung Glacier. A Japanese expedition of ten men and one woman ascended the Durung Drung Glacier to make what they state was the first ascent of P 6000 (19,685 feet) at the head of the glacier. Katsuo Sakai and three others set out from Camp II at 5200 meters and reached the summit at one P.M. on August 17. The rest of the expedition, except for the leader, got to the top the next day. Four members climbed Z3 (6270 meters, 20,571 feet) on August 29.