594f5345524f434b2022020060727024

2006 Half Dome Northwest Face rock fall

Before and after photos of a rock fall source area. The after photo reveals a lighter colored region where the rock sheet detached.

A large rock fall from a low area, slightly southwest of the northwest face of Half Dome, above "Bushido Gully". After detaching along a joint from beneath a prominent curving arch, the slab slid down a steeply inclined surface for 60-80 m and then impacted a lower-angle section of the face where the rock began to break apart. The rocks then fell into Bushido Gully and the central gully beneath the northwest face, producing a substantial dust cloud that was observed throughout eastern Yosemite Valley and Tenaya Canyon.

UTM East: 276488; UTM North: 4180399; Elevation: 2229

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'

NPS Photographer

Public domain

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Yosemite National Park, Code: YOSE

Half Dome
Latitude: 37.7436140013742, Longitude: -119.53675558

Northwest Face
Yosemite National Park, California
Latitude: 37.8399200439453, Longitude: -119.540397644043

Rock Fall Database GroupID for YOSE : 2006072702
Rock Fall Database ID for YOSE : 2006072702-4

Yosemite Rock Falls Collection

20081223

07/27/2006

Public Can View

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

Thursday, May 12, 2022 12:02:48 AM

Thursday, July 28, 2022 6:33:02 PM

2006072702_4_NPS.jpg

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