A view of the Knapp Mounds (now Toltec Mounds) on the lake shore looking west toward Mounds A and R, showing Mound Lake in the background, by H.J. Lewis. (Courtesy National Anthropological Archives, Smithsonian Institution). Image taken from Emerging Patterns of Plum Bayou Culture, Arkansas Archeological Survey Research Series 18, edited by Martha Ann Rolingson.