PubTalk — When Rocks Fall and the Land Slides

Hear why California makes an ideal environment for landslides North face

By Gerald F. Wieczorek, Geological Engineer, and

Raymond C. Wilson, Landslide Geologist

• Hear why California makes an ideal environment for landslides North face
• Learn about rock falls, debris flows, and other landslides Rocks fall
• There have been more than 500 documented rock falls and other slope failures in Yosemite National Park what triggers these? How do park rangers deal with this hazard?
• John Muir gave a remarkable account of an 1872 rock fall in Yosemite Valley
• Large rock falls in Yosemite can generate air blasts potentially dangerous to campers and hikers
• How did ancient glaciers help create the rock-fall hazard in Yosemite? ascent