This National Geographic Trails Illustrated topographic map for Organ Pipe Cactus National Monument, straddling southern Arizona, and northern Sonora, Mexico, is the perfect recreational map for this beautiful Sonoran desert wilderness. The map includes the entire Organ Pipe Cactus national monument area, with detailed topographic information. Included on the map are the Ajo Range, the Ajo Mountain Drive, Arch Canyon, Bates Mountains, Cipriano Hills, the Puerto Blanco Mountains, and much more. Includes UTM grids for use with your GPS unit.More than just a map, National Geographic Trails Illustrated topographic maps are designed to take you into the wilderness and back. Printed on tear resistant, waterproof material, this map can go anywhere you do. Each map is based on exact reproductions of USGS topographic map information, updated, customized, and enhanced to meet the unique features of each area. The maps include valuable wilderness tips and Leave No Trace guidelines, along with updated trails, trailheads, points of interest, campgrounds, and much more. With a new color palette and stunning shaded relief, backcountry navigation has never been easier.