A preliminary archaeological report on a southwestern New Mexico river valley synthesizes field reconnaissance and excavations, recording prehistoric settlements, architectural remains, pottery styles and motifs, burial practices, and votive offerings. It compares local architecture and mortuary customs with neighboring regions, notes distinctive realistic and geometric pottery and links some wares to northern Mexican traditions, and describes artifacts such as carved shell ornaments, bracelets, and figurines. The narrative reviews earlier observations, discusses loss of material to private collectors, and summarizes museum acquisitions resulting from recent fieldwork.