The 80 trails in this book may be the best batch ever put together for northern Colorado. Whether you are a newcomer to 4-wheeling or an experienced veteran, we guarantee you ll have fun. The trails are grouped into six key areas, located north of Interstate 70, in the heart of Colorado"s most beautiful high country. A full-color format makes planning your next adventure simpler than ever. Easy, moderate and difficult routes are color coded, while symbols quickly show kinds of vehicles allowed on each trail. This includes unlicensed UTVs, ATVs and dirt bikes. A separate mileage log ties numbered locations along the route to a custom map and Aerial Terrain view. GPS coordinates are provided for each numbered location and may also be downloaded free from the FunTreks Web site. Included are reverse mileages for all trails and historical highlights. Every book includes concealed spiral binding that lays flat for easy use. Heavy-duty plastic laminate cover withstands rough use. (Not available in square back format.)