In East Texas near Alto, this archaeological site preserves a Caddoan Mississippian village and ceremonial center founded by Hasinai Caddo people between about 850 and 900 CE along a precontact trail later known as El Camino Real de los Tejas. Its three earthen mounds—two platform mounds and a burial mound—marked the southwesternmost ceremonial mound center among North America’s major mound-building cultures. Major building occurred between 1100 and 1300 CE before the community was abandoned around 1250 and its political and religious life shifted to nearby hamlets. Later archaeological work established the site’s significance, and it remains a crucial place for understanding Caddo history despite severe tornado damage in 2019.