An up-to-date guide to the cross country ski trails of Waterton, Banff, Kootenay, Yoho and Jasper national parks, plus Mount Assiniboine and Mount Robson provincial parks. Covers such topics as accommodation, regulations, suitable equipment and clothing, and snow conditions. The author covers groomed trail networks, all backcountry trails and well-established circuits venturing above treeline, such as the popular Wapta Icefields traverse. At the end of the book he suggests a number of multi-day adventures below treeline.