Below you will find the 1986 Point Chronology proposed by Arthur K. Ireland for the Seedskadee Project. The Department of Interior has graciously given permission to reproduce Appendix XIII below. Please note, a more complete and revised projectile point chronology can be found in Prehistoric Hunters of the High Plains and Rockies 3rd Edition, however, this version was easier to upload.
Drager, Dwight L and Arthur K. Ireland
1986 The Seedskadee Project: Remote Sensing in Non-site Archeology. Edited by Dwight L. Drager and
Arthur K. Ireland. National Park Service; Bureau of Reclamation; and United Sates Department of
the Interior.