Indigenous communities globally are challenged by threats to heritage resources due to residual effects of colonization, outsider encroachment on traditional spaces, and economic and political inequities. The effects of climate change add another dimension to these challenges, not only by altering familiar ecosystems and landscapes but also through the destruction of Indigenous heritage spaces. The University of Maine's Northeast archaeology program supports Indigenous resilience to climate change through community-engaged approaches to archaeological research. Recent shell heap research at the Holmes Point West site in Machiasport, Maine, exemplifies these efforts by blending archaeological science with service through Passamaquoddy language preservation and community engagement. This article discusses the University of Maine's partnership with the Passamaquoddy Nation and reflects on the nexus of Indigenous archaeology, heritage protection, and climate change resilience.