Ebook: Pilgrims of the vertical: Yosemite rock climbers and nature at risk

Pilgrims of the Vertical (a phrase borrowed from climber-turned-entrepreneur Royal Robbins) is at once a chronicle of how the sport evolved in Yosemite and a fascinating social history that considers climbing in the larger context of American life...For the general reader, the book makes a fine introduction to the history of climbing and Yosemite's special place in its development.