The Arapaho Sun Dance, G. A. Dorsey
The Book of National Parks, Robert Sterling Yard
The Conquest of Mt. McKinley, Belmore Browne
The Cliff Dwellers of the Mesa Verde, Nordenskiold
The Desert, John C. Van Dyke
The Grand Canyon of The Colorado, John C. Van Dyke
The Ice Age in North America, G. F. Wright
The Land of Little Rain, Mary Austin
The Mountain That Was God, John H. Williams
The Mountains of Oregon, W. G. Steel