The teaching and learning of geographical and mathematical knowledge in early modern England was a complex interaction among scholars, practitioners, merchants, and gentry. Each group had different values and goals associated with geographical knowledge and therefore different educational venues and different topics to be investigated. This paper argues that the alternate educational sites of the universities of Oxford and Cambridge and the more entrepreneurial site of London and the merchant halls were both important to the development of geographical knowledge and produced an important synergy of practical and esoteric interests and concerns.