The study has shown that the Crater Lake National Park region was a suboptimal habitat with reference to aboriginal hunting and gathering economies. Comparison with other areas, especially the immediately adjacent Huckleberry Mountain, demonstrates that climate and altitude were not the only limiting factors. Soil conditions which restricted the proliferation of biotic communities, and hence limited the supply of edible vegetal foods, were equally important. The comparative material also indicated the increasing climatic limitations the higher latitudes impose on high-altitude occupation in the Sierra-Cascades Mountain Province. Further, this study has supported the thesis that the prevalence and relative abundance of vagetal foods determine recurrent patterns of seasonal exploitation of various biotic habitats, and therefore determine the locations of various kinds of archaeological sites.
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