The Sierra Club has created this fun map that depicts U.S. National Parks as if they were stops on a nationwide subway system. The awesome cartography depicts separate “regional” lines that host national parks, like Yellowstone and Yosemite, as well as less famous destinations such as the beautiful Congaree in South Carolina and the Petrified Forest in Arizona. If only there really were such a simple way to visit all these beautiful places by rail!

+ Sierra Club