Abstract: This article draws on a body of Aboriginal and Native American cosmo-epistemologies that are predicated on deep modes of relationality with more-than-human lifeworlds to question Euro-anthropocentric understandings of the concept of “borders.” Situated within this context, I interrogate Western conceptualisations of the border along two seemingly opposed axes: the production of violent border complexes by a settler colonial regime such as the United States and the anti-border activism of such collectives as No Borders. I also examine how, despite discontinuities and differentials, certain elements of the No Borders movement appear to converge with ecological groups such as Earth First! – with its isomorphic motto “nature heeds no borders” – along the topological fold inscribed by the settler colonial state, its racialised relations of power and its Euro-anthropocentric values.