594f5345-524f-434b-2022-020241011011

Upper Yosemite Falls Trail rock fall

Two large blocks of rock fell from above the Upper Yosemite Falls Trail, dropping 200 meters down the cliff before fragmenting upon impact. Boulders then struck the large soil and tree covered ledge containing the horizontal section of the Upper Yosemite Falls Trail, causing rock debris to sweep across the trail. The initial impact caused a large, light-gray-colored dust cloud, followed by a second, brown-colored dust cloud created by soil churned up in the debris flow.

UTM East: 270961; UTM North: 4181435; Elevation: 1726

U.S. National Park Service

Restrictions apply on use and/or reproduction (Copyrighted material): This Item is protected by copyright and/or related rights. Copyright: Colley, Lance

Lance Colley

Public domain:Restrictions may apply on use and/or reproduction

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Yosemite National Park, Code: YOSE

Yosemite Falls
Latitude: 37.7515758112882, Longitude: -119.599752370554

Upper Yosemite Falls Trail
Yosemite National Park, California
Latitude: 37.8399200439453, Longitude: -119.540397644043

Rock Fall Database GroupID for YOSE : 2024101101
Rock Fall Database ID for YOSE : 2024101101-1

Yosemite Rock Falls Collection

2024/10/11

10/11/2024

Public Can View

Person: Greg Stock
Organization: Yosemite NP
Position: Park Geologist
Address: El Portal, CA 95318
Email: greg_stock@nps.gov

Tuesday, February 25, 2025 6:34:50 PM

Tuesday, February 25, 2025 6:34:50 PM

2024101101_2_Lance_Colley.JPG

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Yosemite National Park