Most of the 800 tons of rock that fell on Thursday afternoon landed on a slope behind the historic hotel in Yosemite Valley. There were no injuries, but officials say a car windshield was damaged.
Rangers say rockfalls are common in the winter months, when precipitation and recurring freeze-and-thaw cycles cause soil to loosen.
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Park officials closed one-third of the visitor cabins in Curry Village in November after an Associated Press story revealed federal geologists had warned for at least a decade that a granite face above the lodging units was dangerous.