Mikah Meyer, on a quest to visit all the U.S. National Park Service’s 400-plus sites as a tribute to his late father, relishes the vast prairie in North Dakota’s Theodore Roosevelt National Park. Bison roam the tall grass unrestricted, unlike the corralled beasts shown here; the park also harbors feral horses, elk, deer and prairie dogs. It’s named for the 26th U.S. president, a prominent conservationist. Meyer, 30, set out in June from Washington, D.C., and expects his sojourn will take four years. |