Death Valley National Park, California. West across Death Valley to Trail Canyon fan, showing how the lower limit of the desert varnish follows the contour. The light ground below the darkly varnished gravel is without desert varnish and is highly saliferous. Circa 1960. Figure 57, U.S. Geological Survey Professional Paper 494-A.
Digital File:hcb00925

ID. Hunt, C.B. 925