Written by Topher Donahue. Boulder Canyon is one of Colorado’s most popular climbing areas, a favorite of seasoned enthusiasts as well as those just getting into the sport. Some crags are only minutes from downtown, and there are sport and trad climbs 20 to 400 feet long, 5.2 to 5.14. The granite is varied and friendly, with delicate slabs, splitter cracks, roofs, arêtes — the works. This book gives you everything you need to explore 2000+ climbs: helpful mapping, user-friendly layout, and inspiring photography. New in this 4th edition are contenders for hardest, easiest, and longest routes in the canyon, as well as complete public-transit info for climbers, and excellent new overview photos for navigating to the crags.