Bouldering Colorado(1st Edition) More Than 1,000 Premier Boulders Throughout The State (Bouldering Series) by BobHoran Paperback, 608 Pages, Published 2008 by Falcon Guides ISBN-13: 978-0-7627-3638-6, ISBN: 0-7627-3638-0
Best of Boulder Bouldering(1st Edition) by BobHoran Paperback, 208 Pages, Published 2000 by Falconguides Illustrated ISBN-13: 978-1-58592-004-4, ISBN: 1-58592-004-5