Crown of the continent: The last great wilderness of the Rocky Mountains

A professional naturalist's incredible, personal portrait of America's largest and most pristine wilderness in the lower 48 states: the Northern Continental Divide ecosystem in Montana, Alberta, and British Columbia. This vast area includes two national parks in two countries (Glacier National Park and Waterton Lakes in Canada), three designated wilderness areas including the famous Bob Marshall Wilderness. This book describes the area's geology, wildlife, plant life, and crucial environmental issues with over 150 photographs.