The many ways people make geography. Hayes and Laforte (IHMC, U. W. Florida) identify some particularly ‘geographical’ ontological concepts: continuant—physical entity with space-like part; occurrent—physical entity with time-like parts; location—a piece of physical space; terrain—a piece of geographical space (consisting of locations suitably related to each other); and history—the spatio-temporal region. Martin (2013) PHG DOI: 10.1177/9780199680856209 writes of knowledge systems: ‘Each contains its own spatial ontology, its own rhythms, its own theories of matter, systems of circulation, and rules of exchange’.