Tags: aerial photography, alaska, alps, american mount everest research expedition, arizona, barbara washburn, belmore browne, bob bates, bob reeve, boston museum of science, bradford washburn, cassin ridge, chamonix, charles warren, chu-mo-lung-ma feng, climbing routes, cook trail, denali, frostbite, glaciers, grand canyon, grand canyon national park, henry s hall jr, mount deception, mount everest, mount fairweather, mount hayes, mountaineering, national geographic society, nepal, new hampshire, qomolangma, ruth glacier, sagarmatha, sir george everest, sourdough expedition, switzerland, tuckerman ravine
Tags: flags, humans, men, mount tyree, mountaineers, national geographic society, summits
Tags: flags, humans, men, mountaineers, national geographic society, summits
Tags: flags, humans, men, mount gardner, mountaineers, national geographic society, summits
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