The perfect gift for hikers, campers, and nature lovers, this set of 24 postcards celebrates 12 of America's national parks and the heyday of road tripping.This colorful and cool postcard set features Blackbird's signature style with illustrated maps of 12 renowned national parks, and a range of geographical and topographical features. Each card features a graphic map of a national park, dotted with landmarks, native plants, and commonly found animals, rendered in a way that evokes the iconic look of national park postcards of the past. These 24 postcards (12 designs that each repeat) are as useful as they are beautiful.Parks include:Acadia Glacier Yellowstone Olympic Hawaii Volcanoes Grand Canyon Yosemite Denali Arches Rocky Mountains Great Smoky Mountains Everglades