Nordic Skiing the Gunflint Trail (MN)

With its frozen lakes, pine and spruce-studded woodlands and myriad animal tracks, Minnesota's north country is home to a network of mostly flat trails. While the air is as cold as it gets in North America, there's serious comfort at night with the Gunflint Lodge or the Finnish-sauna-equipped Tall Pines Yurt. Let Boundary Country Trekking transport your gear and food ahead on a snowmobile. They can even cook up a Mongolian fire-pot dinner.