Death Valley National Park, California. Travertine deposits at dry springs along the Furnace Creek fault zone. Circa 1960.

Death Valley National Park, California. Travertine deposits at dry springs along the Furnace Creek fault zone. Two levels of the travertine can be seen. The lower one (tl) drapes over the side of Furnace Creek Wash (foreground) and reaches the floor of the valley. The upper travertine (tu) forms the bench at the skyline in the center. Pre-pottery type projectile points were found on the travertine. Circa 1960. Figure 56, U.S. Geological Survey Professional paper 494-A. Sketch of portion of photo.