Standard, alternate, and technical routes for all 58 Colorado Fourteener peaks A classic guidebook known for its accuracy and comprehensiveness, Colorado's Fourteeners has been updated to include GPS coordinates, revised topographic maps, expanded route details, and new descriptions reflecting alterations to trail access. Besides the often-climbed standard routes, the guide describes many alternative and technical routes. Updated with all the newest information, this is the guide to bring with you to peaks website guides can't reach.