This chapter proposes a diasporic conception of heritage on the US-Mexico border to comprehend the material heritage of irregular migration in the present. Within an evolving project of migration archaeology in and of the present, there is both an urgent application for an archaeological toolkit to understand clandestine processes and a corresponding need for archaeologists to move beyond traditional heritage framings to present their findings to the public. If the goal of contemporary archaeology is to make the familiar unfamiliar, we must defamiliarize narratives that conceive of statelessness as primarily a problem to be solved—even as those who perpetuate those narratives may seek to advocate for migrant rights. In conceptualizing a heritage on the move, this chapter pairs a series of border-based case studies of evolving heritage sites and objects connected with undocumented migration and border securitization with theories of autonomous migration—beginning with Hannah Arendt’s conception of the stateless as “vanguards of their people,” and ending with utopic vision of Aztlán as conceived during the US Chicano Movement.