MACROFLORAL ANALYSIS AND AMS RADIOCARBON AGE DETERMINATION OF A FEATURE FILL SAMPLE FROM SITE 48CO1409, LOCALITY 7581-1, CONVERSE COUNTY, WYOMING

Site 48CO1409, Converse County, Wyoming, contains six stone circles/tipi rings with limited chipped-stone artifacts and a small dart point. The upland site is situated among eroded hills that provide the necessary materials for tipi ring construction along the South Fork Dry Fork Cheyenne River (dry) (John Greer, personal communication June 15, 2015). Core 4, Ring 1, demonstrated a buried charcoal/ash layer at 10–14 cmbs. A sample recovered from this cored layer was submitted for macrofloral identification and AMS radiocarbon age determination to provide information concerning plant use and to assess the feature’s expected age of 2000-700 BP (John Greer, personal communication June 15, 2015).