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The Clovis Occupation of the Dietz Site (35LK1529), Lake County, Oregon, and its Bearing on the Adaptive Diversity of Clovis Foragers

Archaeological models of Clovis adaptations are divided between those that argue for a single hunting adaptation characterized by high residential mobility without fixed territories and those that argue for a diversity of environment-specific adaptations and settlement systems. The Dietz site (35LK1529), the largest Clovis site in the Pacific Northwest, is composed of many overlapping, spatially coherent artifact clusters from which 75 whole and fragmentary fluted points have been recovered. The artifact assemblage is inconsistent with use of the site as a kill, camp, or quarry site. Geoarchaeological data show that the site area during the Clovis occupation was a sparsely vegetated, seasonal playa that is unlikely to have supported large herds of game animals. However, the site sits astride what was probably a major transportation corridor linking highly productive ecosystems in the adjoining basins, and Clovis foragers appear to have camped at Dietz repeatedly while traveling between these nearby basins. The systematic and redundant use of a geographically small landscape by Clovis foragers is inconsistent with expectations based on a model of residentially mobile foragers occupying new territories.