In a photo provided by the Iditarod Trail Committee, veteran musher Ryan Redington, grandson of Iditarod Trail Sled Dog Race co-founder Joe Redington, and his team head out of the Huslia, Alaska, checkpoint at Mile 478 of the Iditarod trail on Saturday, March 11, 2017. (Mike Kenney/Iditarod Trail Committee via AP)
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