594f5345524f434b2022020091211011

2009 Wapama Falls rock fall

Fresh rock debris on trail. Portion of trail shows damage from the impacts of several boulders.

A rock fall occurred from the steep cliff immediately west of Wapama Falls near Hetch Hetchy Reservoir. Numerous boulders landed on and adjacent to the Wapama Falls Trail, discontinuously over a distance of about 200 m. Trail retaining walls sustained damage in several locations. A few smaller boulders appear to have entered the reservoir.

UTM East: 256772; UTM North: 4205518; Elevation: 1430

U.S. National Park Service

To the best of our knowledge we believe this image to be copyright free and in the public domain. When using this asset for any purpose, including online, credit: 'Courtesy U.S. National Parks'

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Yosemite National Park, Code: YOSE

Hetch Hetchy
Latitude: 37.9647242746802, Longitude: -119.7687445

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

Rock Fall Database GroupID for YOSE : 2009121101
Rock Fall Database ID for YOSE : 2009121101-1

Yosemite Rock Falls Collection

20091220

12/11/2009

Public Can View

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

Wednesday, May 11, 2022 11:59:41 PM

Thursday, July 28, 2022 8:10:19 PM

2009121101_1_NPS.jpg

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