Although land loss is among the most profound impacts that settler colonialism had for Indigenous societies across North America, archaeologists rarely study one of the principal colonial mechanisms of land dispossession: allotment. This process forever altered the course of North American history, breaking up collectively held Indigenous lands into lots “owned” by individuals and families while further stressing local Indigenous subsistence patterns, social relations, political organization, and more. Archaeology's long-term, material, and sometimes collaborative vantage stands to offer insights on this process and how it played out for Indigenous peoples in different times and places. As its case study, this article considers the allotment of Mohegan lands in southeastern Connecticut (USA). An archaeology of Mohegan allotment speaks to more than land loss and cultural change. It provides evidence of an enduring and long-term Indigenous presence on the land; of the challenges faced and overcome by Mohegan peoples living through, and with, settler colonialism; and of the nuances of Indigenous-colonial archaeological records. This study also shows the importance of Indigenous and collaborative archaeologies for shedding new light on these challenging but important archaeological traces.