The Trails Illustrated maps from National Geographic are the most detailed and up-to-date topographic recreation maps available for U.S. national parks, national forests, and other popular recreational areas. They are a must-have for exploring nature, as each map is printed on waterproof, tear-resistant material. Additionally, they include important safety and contact information, GPS and compass coordinates, ethical guidelines for Leave No Trace, as well as hundreds of points of interest, including viewpoints, campgrounds, boat ramps, swimming areas, marine protected areas, and wildlife reserves.