Happy National Dog Day! Out on the trail or curled up on the bed, we love our four-legged friends. At Denali National Park in Alaska, sled dogs are important members of the team. Here’s Tephra, a 9-year-old Alaskan husky working her last season before she retires this month. Photo of Tephra posing with fireweed by Miles Leguineche, National Park Service.
Sig Nordal 