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Tenaya Lake, Yosemite National Park

The Moon is Waning Gibbous (94% of Full)

JanSport


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Re: Historical rock falls in Yosemite National Park (1857-2011): Rock fall database published by the U.S. Geological Survey

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After several years of effort, an updated version of Yosemite's rock fall database has been published as a USGS Data Series Report.

The database documents all known rock falls, rock slides, and debris flows in Yosemite National Park from 1857 to 2011, a total of 925 events. Each entry includes information about event timing, location, size, potential triggering mechanism, and any human or infrastructure impacts. This information provides important historical context for ongoing rockfall activity.

The database contains hundreds of eyewitness accounts from park visitors, employees, and residents, as well as information from internal reports and scientific journal publications. The publication is a collaborative effort between NPS and USGS.

The database, as well as an accompanying report and event narratives document can be viewed and downloaded here: http://pubs.usgs.gov/ds/746/
The way the title is written, it sounded as if one of the park's historic rocks (i.e. Overhanging Rock) fell. tongue sticking out smiley
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