MACROFLORAL ANALYSIS AND AMS RADIOCARBON AGE DETERMINATION OF HEARTH FILL FROM SITE 48CO3689, LOCALITY 7608-6, CONVERSE COUNTY, WYOMING

Site 48CO3689 is situated on an escarpment rim of a broad ridge approximately three miles northeast of North Platte River, Converse County, Wyoming. A cluster of burned rocks on the surface identified an unlined hearth that lacked any diagnostic artifacts. Subsurface core testing indicated intact ash-stained sediment submitted for macrofloral analysis and subsequent AMS radiocarbon age determination. Nearby sites, also situated on this ridge crest, indicate occupation as early as the Middle Archaic, during the Late Prehistoric/Protohistoric, and into the late Historic periods. This site is expected to date within the range of 2000 and 300 BP (John Greer, personal communication July 23, 2015).