Centre interuniversitaire d' etudes qu eb ecoises, Universit e du Qu ebec a Trois-Rivi eres
Key MessagesHistorical geographers and historians have represented the St. Lawrence River either as a trade route for continental exploration or as an artery structuring European settlement.A study of historical maps shows that rather than succeeding each other, these two functions continually co-existed in the geographical imaginations of cartographers.The paper suggests areas of potential collaboration between geography and history to question the fluvial relationships of a colonial society and understand its spatial representations.Historical geographers and historians have represented the St. Lawrence River either as a trade route for continental exploration or as an artery structuring European settlement. While the river itself is a clearly defined entity, the fluvial space varies in size, sometimes limited to the St. Lawrence Valley, sometimes including the Canadian Shield, and sometimes even extending to the entire North American continent and embracing the Atlantic World. This shift in scale can also be found in the cartographic productions that accompanied the use of the river. In this paper, I examine the scales and functions of the St. Lawrence River by scrutinizing historical maps of the 18th and 19th centuries and comparing them to the spatial conceptualization of the St. Lawrence River found in Canadian historiography. I explore whether the geographical imagination of different societies as reconstructed by historians-in New France, under the British Regime, and after Confederation-resonates in historical maps, with the goal of demonstrating that the two historical functions of the river are juxtaposed in time and space on cartographic productions rather than simply succeeding each other, as implied by historical representation. Association canadienne des g eographes epoquesen Nouvelle-France et sous le r egime britannique, puis au lendemain de la Conf ed erationtel que recompos e par les historiens trouve, ou non, une r esonance sur les cartes d' epoque. Il appert que les doubles fonctions historiques du fleuve se juxtaposent dans le temps et dans l'espace cartographique, plutôt que de se succ eder simplement comme le sous-tend la production historiographique.