Royal Robbins pioneered the technique and ethics of big wall climbing.
Climbing Adventures, Tips and Gear, and Athlete Profiles - Outside Online
The RunOut Podcast – A podcast about climbing with Chris Kalous and Andrew Bisharat
He peaked young! Eight-year-old becomes youngest ever to climb Yosemite's 3,000-foot El Capitan rock
Meet the 70-year-old who is believed to be the oldest woman to climb Yosemite's El Capitan
i.natgeofe.com/n/35199866-a74f-435e-9988-76850e955
John Bachar, US news
Witnesses deny father's claim his eight year old climbed El Capitan: 'A publicity hoax
Legends of Yosemite Adventure Sports Journal