These three obsidian artifacts were recovered from excavations during the 1977 and 1978 Kansas Archeology Training Program field schools at the Tobias site in Rice County. Shown are two bifaces and a triangular Fresno arrow point. Other obsidian recovered from the site was sourced to New Mexico by using xray-florescence (XRF) testing, a chemical and elemental analysis that determines where obsidian originates. The Tobias site is a Great Bend aspect (ancestral Wichita) village that had dense artifact deposits, house remains, and numerous deep trash-filled storage pits. It is listed in the National Register of Historic Places.