This article examines the role that visual material played in the early years of the quantitative revolution in Anglophone geography. It is part of a larger project that attempts to write a history of geography's scopic regimes in the twentieth century and draws on post‐positivist approaches to the history of science. It is argued that there are a number of strategic as well as theoretical reasons for such a reliance on images in the quantitative revolution. Some reasons are unique to the quantitative revolution in geography, some resemble a more general way in which paradigm shifts take place in science and some are located outside of academia. This article is primarily interested in the internal view on the geography of the quantitative revolution and its rationalities. The paper departs from Christaller's hexagon, as one of the most influential and iconic. It then broadens the view to include a much wider range of visual material, arguing for some more general observations on the use of images in geography during the early quantitative revolution. It is argued that there was a significant shift of forms and functions of visual material. Overall, it is argued, visual material gained in importance and while geography was getting “thinner” and more abstract, its role in making visual arguments became stronger. From being merely an aid for seeing, visual material became a prime carrier of knowledge.