Vol. XII, No. 3 (1926). Some wear around edges; else very good. 
This issue contains "Kings River Cañon and Yosemite Valley" by F. E. Matthes, "Kings River Cañon in 1868" by E. C. Winchell, "First Ascent of Mount Powell" by Walter L. Huber, "Mount Shasta" by Ansel F. Hall, "The Trails of the Yellowstone" by Horace M. Farquhar, "Reading up on the Yellowstone" by Francis P. Farquhar, "The Medicine Bow Mountains of Wyoming" by Fritiof M. Fryxell, etc. Illus. with photos by Ansel Adams, et al.