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This study explores various testing techniques' ability to identify activity areas across deeply stratified, open air archaeological sites. To determine the efficacy of different site testing techniques, a systematic ground penetrating radar and auger survey was completed at three sites in central Alaska: Swan Point, Bachner, and Niidhaayh Na'. The results show that both ground penetrating radar and auger survey can indicate subsurface geology, important for sites without exposed vertical deposits. Additionally, systematic auger surveys can be used to identify activity areas at large sites and in components up to 4 m below surface prior to full-scale excavation. This can help archaeologists identify earlier archaeological components and target specific areas that are directly related to their research questions while preserving the rest of the site for future investigations. Compared to traditional shovel testing, auger surveys provide a consistent, efficient, and rigorous method for assessing buried cultural remains. [ABSTRACT FROM AUTHOR]