594f5345524f434b2022020090418011

2009 Ahwiyah Point rock fall

A dust cloud rises from the base of a steep cliff.

A rock fall from below Ahwiyah Point. The rock mass fell from the prominent bedrock ledge well below the source area from the initial rock fall on 28 March 2009 (but above the floor of Tenaya Canyon). The rock that fell may have been previously detached and lying on or just below the prominent ledge. The rock fall lasting 15-30 seconds, created a substantial dust cloud that remained for at least 20 minutes.

UTM East: 276486; UTM North: 4181232; Elevation: 1978

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: Rousmaniere, Tony

Tony Rousmaniere

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

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Yosemite National Park, Code: YOSE

Half Dome
Latitude: 37.7511142038923, Longitude: -119.53703447

Ahwiyah Point
Yosemite National Park, California
Latitude: 37.8399200439453, Longitude: -119.540397644043

Rock Fall Database GroupID for YOSE : 2009041801
Rock Fall Database ID for YOSE : 2009041801-1

Yosemite Rock Falls Collection

20090418

04/18/2009

Public Can View

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

Thursday, May 12, 2022 12:00:15 AM

Thursday, July 28, 2022 8:06:30 PM

2009041801_1_Tony_Rousmaniere.jpg

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