The seal for Oklahoma Chapter of the CSAS shows some of these rare artifacts. A variety of shell bead styles from the Spiro Mounds makeup the circle. The central bison skull with a painted lightning bolt zigzag is from the Cooper Site. The point at left is the finest Folsom found at Cooper. The point at right is a Tribute point from the Spiro Mounds. These are superimposed over a map of the state showing the major rivers that flow through the state.

The Cooper Bison Kill Site is located on the Beaver River in Harper Co., OK. in the N.W. part of the state. The site was excavated in 1993 and 1994; Oklahoma amateur archaeologists provided a great deal of assistance in the process. There were three distinct Folsom age kill events over the course of many years. The most unique item found at the Cooper site was a Bison skull that had a Red Ochre zigzag lightning bolt painted on it; this is the earliest example of Native American painting ever excavated. This skull was most likely a tribute offering prior to the second hunt.