Western Cwm, Mount Everest
Photograph by Cory Richards, National GeographicAt dawn, a sliver of moon shines above the Western Cwm.
Half Dome, Yosemite National Park
Photograph by Jimmy Chin, National GeographicAlex Honnold takes on the third zigzag of Half Dome without a rope. He has just one more difficult section, or pitch, in the last three before reaching the summit.
Sunset, Mount Everest
Photograph by Cory Richards, National GeographicThe sun sets over the west shoulder of Mount Everest (right) and Mount Nuptse.

This spring en route to Mount Everest, Hilaree O’Neill, 39, a ski-mountaineer from Colorado who is part of our 2012 Everest expedition which will be covered live in the National Geographic iPad app, will trek the same valleys and work up to Base Camp just as Sir Edmund Hillary and Tenzing Norgay did 59 years ago when the duo claimed the first ascent. But on the mountain, fortunately, O’Neill will not be using the antiquated gear—think woolen suits and wood-handled ice axes—that Hillary hauled. In this gallery, we take a look at the equipment Hillary and Norgay used in 1953 and the high-tech gear O’Neill will use to climb the world’s tallest peak in 2012. —Stephen Regenold

Snake River, Wyoming
Photograph by Michael Melford, National GeographicSnake River Headwaters
Bridger-Teton National Forest, Wyoming
387.5 miles protected since 2009

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Iliamna Volcano, Alaska
Photograph by Michael Melford, National GeographicClouds scrape by the snow-covered Iliamna Volcano, which last erupted before Europeans settled in the area.

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