Left: Anna Berington's dog team is illuminated by the lights of her snow machine and her dogs' breaths, during a twenty-mile night run.
Right: Alison Lifka says "Alaska seemed like that last wilderness outpost, and it called to me. That, and the promise of snow. My first summer in Alaska, I guided sea kayaking tours out of Prince William Sound. The most common question I received was 'What do you want to do next?' My answer: mush sled dogs."