 The Eva site was uninhabited when Euro-American explorers and settlers arrived in the late 18th century, although the junction of two major Native American trails ("traces") occurred just south of the site.Cultural materials and features uncovered from Stratum IV and Stratum V (which correlate to the Eva culture) include mussel shells, fire-cracked rocks, flint chips, antler tools, projectile points, and animal bones (mostly deer).Using radiocarbon testing, an antler section uncovered from Stratum IV was dated to roughly 5200 BC.