Both 41AG9 (ET-609) and 41AG10 (ET-610) were identified and recorded by Gus E. Arnold in late 1939-early 1940 under the auspices of the very successful WPA University of Texas archaeological survey of East Texas; they are only ca. 400 m apart. The sites are on elevated alluvial landforms in the Percella Creek valley; Percella Creek is an eastward-flowing tributary to the Angelina River, and joins the river about 3 km to the east of the sites (Figure 1).
During Arnold’s archaeological survey, he collected substantial numbers of ceramic vessel sherds from both sites, and the sites were in plowed fields with good surface visibility. 41AG9 was estimated to cover ca. 1.5 acres, and had midden deposits, as well as disturbed remnants of Caddo burial features. Midden deposits and remnants of possible disturbed Caddo burial features were also noted at 41AG10, and the core of the site covered a ca. 60 x 60 m area (ca. 0.9 acres)
