This paper explores the development of Mexican Revolutionary land epistemologies in the years following the global Great Depression. Demonstrating how ideas about agrarian life informed national development efforts across multiple spheres, including public education, state‐sponsored media, and governmental conservation projects, it argues that human–nature relations were constitutive of state visions of Revolutionary citizenship. Scholarly work interrogating the role of scientific knowledge in land politics has focused on the ways that territorial dispossessions are routed through expert truth claims; this study deviates from that work by asking how resource conflicts can also produce new knowledge to support progressive platforms for change.