Lithic analysis in North America traditionally has focused on bifacially retouched pieces, or bifaces. Angela Close contends that such an approach has ignored cores and debitage to the detriment of analysis.
At English Camp on San Juan Island, Washington, an earlier excavation (1950) kept the bifaces and discarded everything else, unstudied. Typically, the bifaces themselves have been used as type-fossils, allowing assignment of occupation to...