Published online by Cambridge University Press: 20 January 2017
A layer of shells covered by a mixed aeolian and alluvial deposit was exposed by a road cut in a tributary of the Columbia River. Three occupation levels contained few stone tools, including burins and large knives in the lowest level. A contracting-stem point in the middle level places the site in the Frenchman Springs III phase, 4th to 11th centuries A.D. The latest level reflects increasing aridity; the streams became intermittent and the population moved to the main river.