The first single-volume guide to one of the world’s premier bouldering destinations. It covers the best bouldering found throughout Colorado, with descriptions of more than 1,000 boulders – hundreds of which have never appeared in any book – and almost 4,000 individual problems. Written by longtime Colorado climber Bob Horan, this guide includes both traditional favorites and new discoveries that fuel the fire of the boulder’s quest, from the Front Range to Summit County to the Western Slope.