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Yosemite National Park Yosemite Valley with dark clouds looming
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Yosemite National Park
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Rockfall area and talus slope at base of Three Brothers in Yosemite Valley.

Did You Know?
In March 1987, the largest historical rockfall in Yosemite National Park deposited an estimated 1.5 million tons of debris at the base of Three Brothers, closing Northside Drive for several months.
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Last Updated: October 21, 2008 at 21:55 MST