Floatation Analysis report from subcontractor

The analysis of botanical remains from the Lake Elsinore site (Riv-2798) was conducted to provide evidence of plant use by the prehistoric inhabitants of this site. Riv-2798 is an open air site located at the bottom of a small hill on the banks of the outlet channel for Lake Elsinore, Riverside County, California (Grenda, personal communication, 1995). Radiocarbon dates are not yet available for this site, however a preliminary analysis by the site’s investigators suggests that the site was occupied sometime between 9000-3000 B.P. Overall, few plant remains were recovered from the seven samples representing rock clusters/scatters (possible hearths), and the four samples recovered from in and around ground stone artifacts. The paucity of plant remains suggest that conditions at this site do not favor plant preservation. In spite of poor preservation, a few samples contain significantly more plant material relative to others, suggesting that plant processing activities were probably conducted at the site.