Abstract
The Pre-Newberry period in the Inyo-Mono Region has garnered debate in terms of population and land use pattern. Initial thought centered on the abandonment of areas due to climatic fluctuations the prompted population depression. Subsequently, however, the focus turned to the role of different settlement shifts during the middle Holocene and how these changes generated a more ephemeral archaeological record in response to short-term occupation and high mobility. In conjunction with this alternative is the potential for buried deposits to exist under recent Holocene alluvium, and that the visibility of this portion of the record is obscured by taphonomic processes. In order to assess the viability of these alternative explanations, data on numerous dart points from multiple regional reports and projects, along with new data from the Harry Riddell and Rollin and Grace Enfield collections was compiled. Morphometric analysis was undertaken to address variability in middle Holocene dart forms and obsidian sourcing and hydration data were enumerated and added to new sourcing and hydration data from the Enfield sample. These data were then analyzed across landforms of differing ages within the region. The underrepresentation of points on particular landforms of differing age was addressed and artifact frequencies corrected in an attempt to identify biases. Known point morphologies remained consistent in many cases adhering to previous conclusions. Identification of a Wide-Stemmed form was established with the possibility that it represents a generalized form related to Pinto points, potentially a preform. Timing of point forms also adhered closely to expected ranges, albeit conditioned by the limitations inherent in obsidian hydration dating (OHD). The perceived gap in pre-Newberry occupation breaks down with the addition of new data, particularly data obtained from the Inyo-White Mountains east of Owens Valley. Occupation of the region appears to gradually increase throughout the middle Holocene with a slight acceleration post 4000 B.P. and a more dramatic pulse during the Late Newberry interval (ca. 2000 B.P.).