Meet one of the only sled dogs working to protect a national park

June 14, 2014, 1 p.m.
sled dog, husky
Photo: Cody Wellons/MNN Flickr Group

Tephra helps keep watch over Alaska's famous Denali National Park

Photographer Cody Wellons writes, "This is Tephra, one of the 32 sled dogs that lives in Denali National Park in Alaska. These are the only sled dogs in the United States that help protect a national park and the wildlife, scenery, and wilderness within. During the winter, six park rangers and the team of dogs patrol the inner 2 million acres by contacting winter visitors, hauling supplies, transporting wildlife researchers, and helping to ensure that there are not illegal activities happening within the park."

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