One way of investigating the relationships between the ancestral Huron-Wendat communities of Ontario and Quebec is through an examination of their technological practices. In this paper, petrography is used to reconstruct the clay-temper ‘recipes’ used to make pottery at a number of sites in Huronia and the St. Lawrence region. Part of a larger project, these data are used to situate ancestral Huron-Wendat potters within a shared community of practice, and explore their choices in pottery-making that are informed both by technical traditions and by the affordances of their respective landscapes.