As fresh snow dusts the top of the hills, many travel companies look forward to the end of Alaska's busy tourism season -- and seasonal workers start mapping out a winter vacation.

But Brett Carlson is just getting warmed up. That's because his company, Northern Alaska Tour Company, offers year-round travel packages in the Arctic. Carlson, along with business partners Matt Atkinson and Lee Kenaston, use the Dalton Highway -- also known as the "Haul Road" from Fairbanks to Prudhoe Bay -- as the corridor for most of their adventures.

READ MORE: Winter beckons uniquely Alaskan tourism above Arctic Circle