These sites date from at least 10,000 years ago to the present and provide one of the most complete records of Native use of a small landscape in the Northeast. Over twenty lithic materials have been field-identified among this assemblage of artifacts. Twenty-five percent are manufactured of quartz, also presumed to be of local origin. It should be emphasized that these material identifications are based largely on very subjective field criteria, and many are likely false. It is believed, however, that the overall trend observed in the most common materials is approximately correct.
Additional patterns are visible upon examination of diagnostic artifacts.
Close to 300 projectile points have been classed to probable stone material type and prehistoric stylistic tradition. This data set provides a look at changing patterns of stone raw material use over time, at least as reflected in the manufacture of diagnostic bifaces. Based on the current identifications, a number of patterns are apparent which may shed light on prehistoric mobility, exchange and subsistence or political territories. There is good evidence of material use preference during different periods. For example, chert is the dominant Paleoindian material, quartzite and rhyolite were most commonly used during the Middle Archaic, quartz is strongly associated with Squibnocket and Narrow-Stemmed components, and argillite was the dominant material of the Terminal Archaic.