No trace of indigenous occupation has been found in the park. However, it is likely that the territory was occupied during the archaic period beginning at least years ago and continuing through the Sylvicole (1000 B.C. to 1500 A.D.) until the arrival of the French in the 16th century. The native indigenous culture associated with Mont-Saint-Bruno is that of the St. Lawrence Iroquoians, who disappeared around 1580.