For her 63 Parks column, she visited every U.S. national park. To come up with a list of ... a 4.8-mile meander (see the Gaia GPS map of this route below). Before the sun sets, make your way ...

To celebrate the 100th anniversary, postdoctoral researcher at the University of Pennsylvania Randal Oslon has computed the most efficient road trip to visit every one of the 47 national parks in ...