However, the "chemin des érables" (from the route Joseph Saint-Amand and southbound) serves the northern part of the lake (east side), up to a large bay.

[1] Located entirely in forest and mountainous areas, the Jesuit lake is 2.3 kilometres (1.4 mi) (in a direct line) southwest of Missionary Lake and 2.1 kilometres (1.3 mi) (direct line) southeast of Lac Le Jeune.

The dam at the mouth of Lake Jesuit is located at the southeast end (geographic coordinates: latitude 46.8426° and longitude −72.5410°).

The maximum depth shown on the map is 52.9 metres (173 feet 7 inches) in the northern part of the lake.

Its form and extent, Lake Jesuit was an important route in the history of forestry to access licensed territories for logging and timber transport.

The company Veillet & Brothers Limited operated a sawmill (two floors) powered by steam at the southern end of the lake near the outlet.

The equipment of the mill came from the demolition of the sawmill and Veillet Brothers Limited located at Audy (Lac-aux-Sables).

Arsène Abel, son of Freddy Veillet, sold the sawmill in 1952–1953 with all the equipment, to a company that subsequently demolished the mill.