From the Introduction: 'The immediate purpose of this book is to familiarize the visitor with the Rocky Mountain National Park. But the arbitrary boundaries of the park will no more confine the activities of the ardent climber than they define the natural area of the region'; goes to say that it also includes the outlying areas of Arapaho Pass, some miles of the Medicine Bow or Never Summer Range west of the Colorado River.

Contents include: Index of peaks, The park, National forests, One-day trips, The passes, Camping outfit, Camping facilities, Health and hygiene, Weather and climatology, Evergreens of northern Colorado, Six characteristic mountain birds, Key to Colorado chipmunks, squirrels and gophers, The peaks and how to reach them, Longs Peak (various routes), Mount Meeker, Peaks of the Mummy Range, Other peaks of the Continental Divide, Peaks accessible from Wild Basin, Peaks accessible from Middle St. Vrain Creek, Peaks accessible from Ward, from north Boulder Creek, from the West Slope, Grand Lake, Monarch Lake, Circuit Trips, and General Data, Bibliography, Hotels, more.