To contribute pedagogies that reimagine relationships in a more-than-human world I adopt a posthuman approach to map the content and expressions of imagination in a series of pedagogical events on Dja Dja Wurrung Country, Kooyoora, Australia. By working with Bennett's concept of vibrant matter and MacLure's generative data fragments I attend to the collective -- student/teacher bodies, geological landscape, embodied actions, histories, passions and reactions -- to interrogate pedagogical assemblages of an imaginative geological walk. In doing so, I explore what holds these assemblages together and what breaks them apart and follow the generative onto-epistemological forces at play. I do so with a posthuman lens to remain open to the possibilities of learning from, with, and in these educational entanglements.