

A big-wall climber who literally engineered the tools, from portable ledges to innovative haul bags, that made the impossible walls possible.
John Middendorf approached vertical granite with the mind of an engineer and the soul of a poet. In the 1980s and '90s, he was at the sharp end on some of the world's most daunting big walls, from the frozen sweep of Antarctica's Mount Scott to the sun-baked expanse of the Nameless Tower in Pakistan. But his lasting impact came from his workshop. Dissatisfied with clunky gear, he designed and manufactured equipment—like the iconic A5 haul bag and the Big Wall ledge—that became standard issue for a generation of climbers. His writings and detailed diagrams distilled the art of vertical living into a shared language of possibility.
1946–1964
The largest generation in history at the time. Shaped by postwar prosperity, the Vietnam War, the sexual revolution, and Watergate. They questioned every institution their parents built — then ran them.
John was born in 1959, placing them squarely in the Baby Boomers. The events that shaped this generation — postwar prosperity, civil rights, Vietnam, and the counterculture — shaped the world they entered and the choices available to them.
The biggest hits of 1959
#1 Movie
Ben-Hur
Best Picture
Ben-Hur
#1 TV Show
Gunsmoke
The world at every milestone
Fidel Castro takes power in Cuba
Civil Rights Act signed; Beatles arrive in America
Watergate break-in; last Apollo Moon mission
Fall of Saigon ends the Vietnam War
Star Wars premieres; Elvis dies
John Lennon shot and killed in New York
Berlin Wall falls; Tiananmen Square protests
Columbine shooting; Y2K panic builds
Michael Jackson dies; Bitcoin created
First image of a black hole; Hong Kong protests
AI reshapes industries; Paris Olympics
He held a degree in mechanical engineering from Stanford University.
He once spent 27 consecutive days on a wall during an attempt on the Reticent Wall on El Capitan.
His gear company, A5, was named after the most difficult aid climbing rating.
He was an accomplished trad climber, with early ascents of classic routes like the Phoenix in Yosemite.
He contributed technical illustrations and articles to major climbing magazines for decades.
“We sewed our own portaledges, trusting our stitches against the void.”