Report of Archaeological Investigations at the River Glen Site (CA-NAP-261), Napa County, California.
ARCHAEOLOGICAL CONSULTING AND RESEARCH SERVICES INC MILL VALLEY CA
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Archaeological investigations completed at site CA-NAP-261, located on the west bank of the Napa River to the north of the City of Napa have produced evidence of occupation at the site from perhaps as early as 3000 years B.P. and lasting, intermittently, until possibly as late as the early A.D. 1800s. The site has sustained considerable disturbance, induced both by man and by natural agents, especially rodently. Two radiocarbon age determinations were obtained to date the base of the occupational layer. Sample I-10,046 yielded a date of 250595 years B.P. 555 B.C. and sample I-10,047 yielded an age of 1965170 years B.P. 15 B.C.. Sample I-10,046 was collected from the 70-80 centimeter level of the site, while sample I-10,047 was obtained at the 90-100 centimeter level. One hundred and fifteen 115 obsidian hydration samples were prepared which support the dates for the site suggested by the carbon samples. Thus, it is thought that major occupation at the site occurred between 1800 and 2800 years B.P. While some indication of a later occupational component at the site is indicated, it has apparently been destroyed. Artifactual remains from the site are sparse, but when combined with the constituent materials from the midden, a apicture emerges of an aboriginal population which intensively exploited a highly localized resource base.
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