Yosemite National Park, California. Up Yosemite Valley from the vicinity of
Artist Point. El Capitan on the left. Cathedral Rocks and Bridalveil Fall on
the right. Photo by J.T. Boysen, 1923. Plate 3, U.S. Geological Survey
Professional paper 160.
Professional Paper-0160
Digital File:mfe00647
ID. Matthes, F.E. 647