known sites within the Osage USGS Quadrangle and the Blacksville USGS Quadrangle on the environs of the Pennsylvania and West Virginia border are of the Monongahela Culture. The Worley village Complex (46Mg23) dates to about AD 900. It is located within the Blacksville USGS Quadrangle, as is the recently found Wana village site, which was revealed by infrared photography. A field test at the Wana site confirmed pottery, shell, and flint present. It has not yet been studied. The LaPoe (46Mg21) village complex in Monongalia County, West Virginia is a circular village occupied during the 16th and 17th centuries, with trade items recovered. Nearby LaPoe, 46Mg18 is a stone burial mound. Also located at LaPoe is the village site 46Mg20. Pyle Farm, 46Mg15, is a late prehistoric village site that is located in the Osage USGS Quadrangle. In addition, hundreds of undocumented archeological sites exist in the Dunkard Creek Watershed of Greene County, Pennsylvania and Monongalia County, West Virginia. Material culture Ceramics Monongahela pottery was constructed using the coil method, tempered using crushed igneous rock (e.g., granite) or quartz temper, and usually decorated with cordmarking. (Mayer-Oakes’ 1955) To quote the Maryland Archaeological Conservation Lab, "Monongahela ceramics are a complex series that begin with an early grit or limestone tempered group and end with a very anomalous collection of types found in southwestern Pennsylvania during the post-Contact period." According to the collaborative research of 2009 of William C. Johnson (Society for Pennsylvania Archaeology) and D. Scott Speedy (Grave Creek Mound Archaeology Complex Research Facility in West Virginia), Monongahela tradition women favored the production of final Z-twist cordage production. On the upper Ohio River drainage basin subareas, some pottery apparently represents the incorporation of local Late Woodland groups with their own distinctive cordage-manufacturing traditions. As Johnson and Speedy say in their abstract, "In the absence of elaborately decorated ceramics, variations in the relative frequency of the predominant cordage twist direction peculiar to some subareas also suggest that twist direction may function as a group signature, thus permitting identification of individual or related village removals that may be synonymous with tribes." Village construction Monongahela houses were small oval to round shaped and were built within palisaded villages with a central plaza. These villages' entry point often had a maze-like structure that overlapped the stockaded outer walls. Differing from Fort Ancient methods, some entrances were covered. Some of the villages had elevated observation platforms.