A hiker at Zion National Park captured footage of a “substantial rockfall” that officials say injured three people over the weekend. Park officials say the rockfall hit a closed trail, taking down trees and “showering visitors with smaller rocks, branches, and a plume of dust and sand.” https://abcn.ws/2zk04Tt | ABC News

Yosemite Rockfall Year in Review: 2021 2021 proved to be a relatively mild year for rockfalls and other slope movements in Yosemite. Forty-seven rockfalls were documented in 2021, with a cumulative volume of about 1,570 cubic meters (4,670 tons). Both metrics are below recent averages, perhaps related to below-average precipitation in 2021. The two largest rockfalls in 2021 occurred at El Capitan. The largest was an approximately 1,000 cubic meter (nearly 3,000 ton) slab that fell from low on th

Slope Stabilization and Rockfall Prevention Measures | Synopsis of Life