Yosemite, a book by Glen Denny who was a photographer and climber. He pictured his fellow climbers in the 60's in Yosemite National Park. The granite walls of Yosemite Valley have drawn a lot of visitors over the years. In the late 1950's and through the 60's, they galvanized a group of rock climbers, who saw their glacier-polished faces as the urest challange. When those climbers first made their way up Half Dome and El Captain, they ushered in a new era. They developed techniques, tools and philosophies that would change the sport forever.