3The Yellowstone National Park Adventure Set consists of a Pocket Naturalist Guide and National Geographic Map, ideal, lightweight references to take hiking or driving while exploring this spectacular region. Waterford's folding pocket-sized, Yellowstone Wildlife guide is a beautifully illustrated reference to over 140 familiar and unique species of animals and includes a map featuring prominent wildlife-viewing areas. National Geographic's Yellowstone National Park Trails Illustrated Map is a waterproof, tear-resistant map that features detailed topographic information of the region, useful traveling tips, plus up-to-date information on trails, roads, and points of interest.