The 4WD Trails books are a series of inexpensive 4WD travel guides that include the trail information for selected regions included in the comprehensive 4WD Adventures series. All three titles provide all the information needed for anyone with a sport utility vehicle to explore about 30 backcountry trails within a selected region of Colorado, from easy to challenging. They feature approximately 50 photographs and step-by-step directions for each trail. Every trail includes a two-color map, ratings for degree-of-difficulty and scenic beauty, driving time, overall and point-to-point distances, and GPS coordinates. Write-ups include brief histories of the trails, the ghost towns, and mining operations in the area.