Pilgrims of the Vertical: Yosemite Rock Climbers and Nature at RiskEbookPilgrims of the Vertical: Yosemite Rock Climbers and Nature at RiskbyJoseph E. Taylor IIIRating: 0 out of 5 stars0 ratingsSave Pilgrims of the Vertical: Yosemite Rock Climbers and Nature at Risk for later