The Gates of the Arctic National Park, in Alaska, is one of the marvels of the U.S. national park system. This and other parks lie on roads less traveled, and take some extra incentive to visit.

About 110 miles to the west, ... it is home to more than 40 percent of all the aquatic birds that visit Alaska’s ... A herd of barren ground caribou 300 strong picks its way around the wetlands ...