Potter was also known for
highlining and for his
BASE jumping. He was introduced to slacklining by Charles Victor Tucker III, known as "Chongo", one of the first three people to highline across
Lost Arrow Spire. Potter completed a variety of highline-crossings without the benefit of a safety
climbing lanyard, backup-line, or even a BASE jumping
parachute. Some included lines suspended as much as above the ground in
Yosemite National Park. On August 6, 2008, he completed the first FreeBASE ascent of the
alpine climbing route,
Deep Blue Sea , on the
north face of the Eiger. Potter invented freeBASEing as a combination of
free solo climbing (e.g. rock-climbing without the assistance of ropes), but with a BASE jumping parachute rig attached on the climber's back. In the event of a fall, if sufficiently high-above the ground, the climber should have time to open his parachute before hitting the ground and survive. In 2014, Potter released the film,
When Dogs Fly, charting the adventures of his
hearing dog, Whisper, including parachuting together. The film went
viral but was criticised by
animal rights campaigners.
Death On May 16, 2015, Potter and Graham Hunt
died attempting a proximity wingsuit flight from
Taft Point above
Yosemite Valley. The route they were attempting, which they had flown before, required them to clear a small notch in a rocky ridge line. Hunt hit a side wall during the flight while Potter cleared the notch before crashing. Both died on impact. Neither of them had deployed their parachutes. Potter's and Hunt's deaths brought the total number of BASE jumping deaths in
U.S. national parks in 2015 to five. Between the years of 2014 and 2019, there were three deaths attributed to BASE jumping in Yosemite, including this incident. Fellow rock climber
Doug Robinson, considered the father of
clean climbing in
Yosemite, told the BBC that he was "very sad about Dean Potter's death but not very surprised." He said Potter had always sought to take on new challenges, "pushing the envelope all his life." ==In popular culture==