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Mount Rainier National ParkPark visitors and their car in 1921 with snow birms lining the Paradise Road.
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Mount Rainier National Park
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Artist rendering of the Osceola Mudflow releasing from Mount Rainier.  

Did You Know?
About 5,600 years ago the summit and northeast face of Mount Rainier fell away in a massive landslide accompanied by volcanic explosions. The Osceola Mudflow, a towering wall of mud and rock, thundered down the White River Valley where it deposited 600' of debris eventually reaching the Puget Sound.

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Last Updated: September 18, 2008 at 18:14 EST