Pushing through the snow

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• Photos

s 1925 photograph shows a group of local thoroughbred Siberian sled dogs pulling their driver. Dog sleds have a distinct history in Alaska. A 674-mile relay race from Nenana to Nome in 1925 took 20 drivers 127 1/2 hours to deliver 300,000 units of antitoxin serum to battle a diphtheria outbreak in Nome. This historical event was the inspiration of the annual 1,200-mile Iditarod Trail Sled Dog Race that stretches from Anchorage to Nome.