In Photos: Mount Everest Expeditions Then and Now

The Trek In

mount everest expedition, mountain

(Image credit: Cory Richards/National Geographic)

Everest Base Camp and the Khumbu Glacier glow beneath a full moon.

Way Up There

mount everest expedition, mountain

(Image credit: Andy Bardon)

@natgeo on Instagram: Flying in front of Thamserku (6608m) and Kangtega (6685m) #oneverest #nepal #thenorthface

Able Assistants

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(Image credit: Cory Richards/National Geographic)

Yaks carrying gear over the Khumbu Glacier en route from Kathmandu to the Everest Base Camp.

Men Carry the Weight

mount everest expedition, mountain

(Image credit: Barry Bishop/National Geographic)

Men carry supplies to Everest Base Camp for the 1963 American team.

Put in Our Place

mount everest expedition, mountain

(Image credit: Barry Bishop/National Geographic)

Mountain walls, constricting Khumbu Glacier as it cascades from the Western Cwm at 19,800 feet, break the ice into huge blocks that push inexorably downward. Climbers appear insignificant amid the morass.