From the press release:
The Great Unknown: Artists at Glen Canyon and Lake Powell Opens at the New Mexico Museum of Art
New Mexico Museum of Art
Untitled (Side Canyon, Navajo Sandstone)
1956
Pigment print
Credit: Tad Nichols, Courtesy of Northern Arizona University, Cline Library, Tad Nichols Collection
Note: Representative image at left is often cropped for display purposes. Downloaded high-resolution images are not cropped.