Before setting out, La Salle sold most of his land back to the Sulpicians and the rest to Montréal merchants. Jean Milot bought a 420-acre tract known as Fort Lachine or Fort Rémy (now Saints-Anges archaeological site, LaSalle Borough). The brother-in-law business partners Charles Le Moyne and Jacques Le Ber bought 120 acres for use as a trading post. The stone building (now Musée de Lachine) they erected there is one of the oldest such structures still standing on Montréal Island.
.
This illustration of Fort Lachine is an interpretation by the 19th-century illustrator S. A. Brodeur based on a description by Gédéon de Catalogne.
Désiré Girouard, Lake St. Louis Old and New, Illustrated; and Cavelier de LaSalle. Montréal: Poirier, Bessette & Co, 1893.