In the last 30 years many changes have taken place within the Cowlitz Indian Tribe. These changes involve the tribe’s sovereignty and have greatly impacted the emic identity of the tribe. Previous identity research with the Cowlitz predates these changes and no longer accurately describe the Cowlitz. The question for this research was how have these changes affected the emic identity of the Cowlitz today as seen in their community and interactions? And how does their identity now compare with their identity in the times of pre-contact and initial contact with whites? This research uses Manuel DeLanda’s assemblage theory to assess and compare the emic identity of the contemporary and historical tribe in terms of sovereignty, identity, and cultural rejuvenation. When the structure, relationships, activities, and purposes of the tribe and groups within the contemporary tribe were analyzed, there was a striking resemblance to the community system described in early settler journals and histories of the Cowlitz. The research was cross-sectional, including ethnographic study, interviews of tribal members, document analysis, and historical analysis. In an attempt to allow the Cowlitz people to speak for themselves rather than project ideas onto the tribe, each section of the research first allows tribal members to voice their opinions and then relies on Cowlitz voices to confirm the analysis. The final dissertation was then submitted to the tribe for comment.