Rio GrandeNiagara FallsGrand CanyonAcadia National ParkBryce CanyonOkefenokee SwampNine-Mile Prairie13 Mile WoodsGreat Smoky MountainsMount McKinleyYosemite National ParkHagåtña BaySt. JohnMount RainierBadlands National ParkCover bearing all 18 Scenic American Landscapes stamps postmarked at Yosemite National Park