When it was published in 1971, it was the first book with accurate distances and detailed descriptions to the trails of the Canadian Rockies.
The 8th edition covers more than 3,400 kilometres of trails in Banff, Jasper, Yoho, Kootenay and Waterton Lakes National Parks, plus the provincial parks of Mt. Assinboine, Mt. Robson, Akamina-Kishinena, Peter Lougheed, and Elk Lakes.