| Missionary lake | |
|---|---|
_-_C%C3%B4t%C3%A9_Nord.jpg) "Passe à Groleau" (Groleau Strait) separating the northern and southern parts of Missionary lake. The bridge (in background) serves cottages located on the northeast shore, in the middle of the "Missionary lake". | |
  Missionary lake Missionary Lake in Quebec | |
| Location | Quebec, Canada |
| Coordinates | 46°55′00″N 72°33′37″W / 46.91667°N 72.56028°W |
| Type | natural |
| Primary inflows | surrounding streams |
| Primary outflows | Discharge toward Mékinac Lake |
| Basin countries | Quebec, Canada |
| Max. length | 13 km (8.1 mi) |
| Max. width | 1.2 km (1 mi) |
| Surface area | 5.93 km2 (2.29 sq mi) |
| Max. depth | 61 m (200 ft) |
| Surface elevation | 167 m (548 ft) |
| Settlements | Trois-Rives, Lac-aux-Sables |
Missionary Lake [formerly named "Grand lac long" (Grand Long Lake)] is located in the municipalities of Trois-Rives and Lac-aux-Sables in the Mekinac Regional County Municipality (RCM), in Batiscanie, in the administrative area of the Mauricie, in the province of Quebec, Canada. It is named in honour of missionary and explorer Paul Le Jeune, one of the founders of the Jesuit mission that was opened in 1634 in nearby Trois-Rivières, Quebec.