This Outside Magazine adventure travel guide describes 21 knobby tire destinations spanning 5 continents. Story, Rob. Softcover; 216 pages; 175 color photos. Outside Books; copyright 2001. Rates each trip's physical and mental demands, comfort and price-range, plus vital information on trip time, best time to go and more. Full-color photography on nearly every page will inspire you to get under way. Divided into four sections: The Meccas, The Tropics, Road Trips and The Outer Limits.