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Possession Beach Slide  
 
 
 
A large landslide from the face of a 300 foot bluff, Possession Beach, Whidbey Island, 1979. Glacial sediments (Vashon till, sand, and gravel) plunged into nearshore waters creating "a twelve foot wave" as residents recall. The wave damaged homes, foundations and boats. If the slide had rolled down a few hundred feet to the south (left), it would have destroyed beach cabins below.  
 

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