Tremper Mound, Hopewell Catlinite, and Pima Technology

Abstract

Archaeologists have long recognized that the Hopewell period was marked by the movement of exotic raw materials and artifacts across the eastern United States. The use of archaeometric techniques to trace the sources of these materials is well established. However, little work has been done on sourcing the pipestone used in Hopewell pipes. In this research we use Portable Infrared Mineral Analyzer (PIMA) technology to identify the presence of Minnesota catlinite as a raw material used for pipes recovered from the Tremper Mound (33SC4) caches in the Scioto Valley of Ohio. A new radiocarbon date places the deposition of these caches between B.C. 50 and A.D. 79. The presence of catlinite pipes in Ohio and in Wisconsin, but rarely in Illinois, suggests the existence of a direct west-to-east route from the catlinite quarries through Wisconsin to Ohio. This movement of catlinite appears to have been a short-term Hopewellian event and the material was not used again until late prehistoric times.