The unfettered wilderness of South Dakota ushers forth a road warrior's world of wicked-looking parks, American icons, herds of bison, and more than one opportunity to indulge your inner cowboy. Giddy up!
This tour along the closest thing North America's got to an inland ocean leads to placid shores, self-propelled water exploration, giant sand dunes, and the end of are-we-there-yet wining.