Map of Yosemite Valley, Yosemite National Park, California, Mariposa County /
Schaffer, Jeffrey P.
Wilderness Press.
Berkeley, Calif. : Wilderness Press,
1977.
Folded title: Topographic map of Yosemite Valley.
Basic map produced by USGS by photogrammetric methods from aerial photographs taken 1955.
Index.
Verso: The ever-changing story of Yosemite Valley by J.P. Schaffer (with diagrams & photographs).