A Dan Josselyn Memorial Publication The ninth and final volume in the C.B. Moore reprint series that covers archaeological discoveries along North American Waterways. Clarence B. Moore (1852-1936), a wealthy Philadelphia socialite, paper company heir, and photographer, made the archaeology of the Southeast his passion. Beginning in the 1870s, Moore systematically explored prehistoric sites along the major waterways of the region, from the Ohio River south to Florida and as far west as Texas, publishing his findings, at his own expense, with the Academy of Natural Sciences of Philadelphia. This volume, the final in a series of nine, includes Moore's investigations along waterways of Arkansas and Louisiana-the Ouachita, Red, Saline, Black, Tensas, and Atchafalaya Rivers-in three complete field sessions ending in 1909, 1912, and 1913. He located and mapped more than 185 mounds and cemeteries. Artifacts recovered in this territory, such as ceramic effigy pots, earthenware pipes, arrowheads, celts, and projectile points, include some of the most important ones discovered by Moore in his 47 years of excavating. Included in this volume is a CD containing the 69 color illustrations from all the original expedition volumes. The elaborate earthwork of Poverty Point, located in West Carroll Parish, Louisiana, is perhaps the most remarkable archaeological site presented in the volume. In some cases, Moore documented sites along the tributaries that have since been destroyed by river action or looters. In other cases, the National Register of Historic Sites and concerned landowners in Arkansas and Louisiana have preserved the record of aboriginal peoples and their life ways that was first illuminated by Moore's sophisticated study.