National Geographic National Parks Trail Guide (Jewel Case) Walk every trail, climb every mountain and ford every stream as you explore 13 major parks and preserves Up-to-date information on trailheads, campgrounds, museums & visitor centers, and much more Complete 360-degree access to every part of the campground, and in-depth information like topographical elevations, and major roads, available with just a click Covers the major parks between(and including) Yosemite and Grand Cnayon - Mount Rainier, Yellowstone, Denali, Shenandoah, Grand Teton and many others Supports most popular handheld GPS receivers(cables not included)