This study presents a preliminary compilation of 1) archaeological sites or geographic locations in the lower Columbia River valley where mobile prehistoric zoomorphic and anthropomorphic stone sculptures have been found, 2) a descriptive listing of the sculptures found at each of these sites or locations, and 3) insofar as possible an evaluation of the significance of these sculptures in the culture history for the area. Such an evaluation is based primarily on evidence derived from archaeological, ethnographic and historic contexts wherever they can be ascertained. However, the evaluation is also based upon a general analysis of the inherent design characteristics of the carvings.