The 100 trails in this book may be the best batch of Arizona 4 x 4 trails ever put together in one place. Spiral Bound for laying flat on your off road vehicle. Color format, separate mileage log ties numbered locations along the route to a custom map featuring a relief background. GPS coordinates are provided for each numbered location. Included are reverse mileages for all trails and historical highlights. All supported by an active website which includes free trail updates, GPS downloads and email newsletter.