Hikers affectionately refer to this hiking guidebook as “the Bible.” When it was published in 1971, it was the first book with accurate distances and detailed descriptions to the hiking trails of the Canadian Rockies. The 9th edition, which was most recently revised and reprinted for the 2017 hiking season, covers more than 3,400 km (2,100 miles) of hiking trails in Banff, Jasper, Yoho, Kootenay and Waterton Lakes National Parks, plus the provincial parks of Mt. Assiniboine, Mt. Robson, Akamina-Kishinena, Peter Lougheed, and Elk Lakes. The 9th edition includes: descriptions of 229 Canadian Rockies hikes and routes plus dozens of side trips, as well as more than 150 photographs. It includes 40 maps, trail logs measured by “trail wheel”, and GPS co-ordinates for all trailheads. It also lists sources for information, maps, backcountry lodging, and transportation.