Shown are two arrow points recovered y Kansas Historical Society archeologists at a Middle Ceramic period Pratt complex village in Pratt County. The complete side-notched arrow point is made of an unknown chert. The corner-notched obsidian fragment was sent for X-ray-florescence (XRF) testing, a chemical analysis that indicates the original source of the obsidian. The flake was found to be from a lava flow in the Jemez Mountains near Taos, New Mexico. This type of analysis helps archeologists learn about ancient trade patterns, suggesting either trade with people further southwest or travel by Pratt complex people to the Jemez Mountains.

Date: 1300-1500 CE