<p>Potter <a href="http://adventureblog.nationalgeographic.com/2012/02/07/dean-potter-on-flying-like-a-bird-the-art-of-not-falling-and-his-nat-geo-show-airing-212-at-8-pm/">balances between two rock pillars</a> on the summit of Cathedral Peak in Yosemite National Park. He got climbers to embrace highlining—walking across a slack rope stretched over a drop.</p>

Moonwalk

Potter balances between two rock pillars on the summit of Cathedral Peak in Yosemite National Park. He got climbers to embrace highlining—walking across a slack rope stretched over a drop.

Photograph by Mikey Schaefer

6 Pictures Highlight Climber Dean Potter's Extreme Moments

Climber, runner, BASE jumper: athlete Dean Potter continually pushed the boundaries of some of the most extreme sports in the world.

Extreme climber Dean Potter, pushed the boundaries of sports like wingsuit BASE jumping and solo climbing, ascending walls over a thousand feet high with only a parachute for safety. Potter and Graham Hunt died in a BASE jumping accident in Yosemite National Park over the weekend.

Here are six pictures from a career filled with high-flying "firsts." (Read about "How Dean Potter Reinvented Climbing, Jumping, Flying.")

Andrew Bisharat contributed reporting.

Read This Next

Is banning fishing bad for fishermen? Not in this marine reserve
SeaWorld allegedly violated the Animal Welfare Act. Why is it still open?
'World’s worst shipwreck' was bloodier than we thought

Go Further

Subscriber Exclusive Content

Why are people so dang obsessed with Mars?

How viruses shape our world

The era of greyhound racing in the U.S. is coming to an end

See how people have imagined life on Mars through history

See how NASA’s new Mars rover will explore the red planet

Why are people so dang obsessed with Mars?

How viruses shape our world

The era of greyhound racing in the U.S. is coming to an end

See how people have imagined life on Mars through history

See how NASA’s new Mars rover will explore the red planet

Why are people so dang obsessed with Mars?

How viruses shape our world

The era of greyhound racing in the U.S. is coming to an end

See how people have imagined life on Mars through history

See how NASA’s new Mars rover will explore the red planet