The "Au fil de l’eau" (Along the Water's Edge) project is an initiative of the City of Longueuil, a municipal administration committed to developing a sustainable living environment. This microsite stems from the observation that the city's extensive archives were not being consulted, coinciding with the climate emergency linked to the heavy rainfall events of recent years. The municipality was therefore seeking a solution to transform this wealth of factual material into a mobilizing tool for water management.