A compilation of the qINFOq pages of Mountain magazine from Issue No. 1 in January 1969 to Issue No. 64 in December 1978, being a total of 10 years information on the major events of mountaineering and rock climbing throughout the world.Camp 4 was established on the arete at 21, 300ft., and Bonington and Haston eventually broke through to the ... The second man carries all cylinders while the leader is fed by a connecting tube. ... had abandoned their attempt the previous day; after bivouacking at 26, 000ft. they returned suffering from snow blindness.