Under the shadow of Mt. Whitney lies California's Owens Valley, the deepest valley in North America. This is a landscape of contrasting environments from snow-capped spires to desert valleys, from volcanic moonscapes to verdant marshlands. Unlike the miners of the California gold rush who sought gold for the easy riches it would bring them, the native cultures of the region sought a different rock, precious to them for their very survival: Obsidian. Black glass. With advances in the analysis of obsidian, archaeologists are taking a second look at what ancient arrowheads, points and flakes can tell them.
Director: Phil Gross and David Mack
Producer or Production Company: Phil Gross, and Far-Western Anthropological Research Group