594f5345524f434b2022020060806012

2006 Elephant Rock rock fall | debris slide

A close perspective of a brown and white dust cloud with boulders actively fragmenting and crashing into the talus slope below.

A medium-sized rock fall occurred from the west face of Elephant Rock in the Merced River Canyon downstream of Yosemite Valley. A large slab of rock detached from high on the west face in the upper east portion (upper left portion when viewed from the Merced River) of the March 1971 rock-fall scar. The slab slid off the north-dipping detachment surface, free-fell about 50 m to a series of steeply sloping ledges, and broke into a number of fragments upon impact, generating a large dust cloud. Rock fragments, some several meters on a side, proceeded to tumble down the steep talus slope and initiated a small debris slide. These fragments traveled down slope to the Merced River.

UTM East: 260620; UTM North: 4177415; Elevation: 1265

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: Dunn, Herb

Herb Dunn

Restrictions apply on use and/or reproduction:Copyrighted material

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Yosemite National Park, Code: YOSE

Merced River Gorge
Latitude: 37.7127364782697, Longitude: -119.71568828

Elephant Rock
Yosemite National Park, California
Latitude: 37.8399200439453, Longitude: -119.540397644043

Rock Fall Database GroupID for YOSE : 2006080601
Rock Fall Database ID for YOSE : 2006080601-2

Yosemite Rock Falls Collection

20060806

08/06/2006

Posted on https://geology.com/articles/yosemite-rockfall.shtml, https://www.flickr.com/photos/yosemitejunkie/albums/72157600720801819

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

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