In August of 1976 the authors made an intital archaeological survey of the Dasht-i-Nawur, a highland volcanic-tectonic basin in Central Afghanistan. Two Epi-Paleolithic surface sites and one later hill fortification of uncertain date were discovered and investigated. An outstanding feature of the Epi-Plaeolithic sites was that the source of virtually the entire tool industry was a locally available obsidian, a material that has not been found before in archaeological context in Afghanistan or nearby regions. The Dasht-i-Nawur, therefore, must be added to the short list of obsidian sources in Southwest Asia.