Country: United States, Year of Issue: 2006, Type Set of 40 Stamps: , F/VF MNH, Topic: Wonders of America, American Alligator, Moloka’i Cliffs, Saguaro Cactus, Bering Glacier, Great Sand Dunes, Chesapeake Bay, Cliff Palace, Crater Lake, American Bison, Coastal Reef, Florida Keys, Pacific Crest Trail, Gateway Arch, Appalachians, American Lotus, Lake Superior, Pronghorn, Bristlecone Pines, Yosemite Falls, Kilauea, Mammoth Cave, Death Valley, Quaking Aspen, Animal, Flower, Plant, Catalog #: Scott 4033-72