Montreal Lake is a lake

Lake

A lake is a body of relatively still fresh or salt water of considerable size, localized in a basin, that is surrounded by land. Lakes are inland and not part of the ocean and therefore are distinct from lagoons, and are larger and deeper than ponds. Lakes can be contrasted with rivers or streams,...

 in the Lake Superior

Lake Superior

Lake Superior is the largest of the five traditionally-demarcated Great Lakes of North America. It is bounded to the north by the Canadian province of Ontario and the U.S. state of Minnesota, and to the south by the U.S. states of Wisconsin and Michigan. It is the largest freshwater lake in the...

 drainage basin

Drainage basin

A drainage basin is an extent or an area of land where surface water from rain and melting snow or ice converges to a single point, usually the exit of the basin, where the waters join another waterbody, such as a river, lake, reservoir, estuary, wetland, sea, or ocean...

 in Sudbury District

Sudbury District, Ontario

The Sudbury District is a district in Northeastern Ontario in the Canadian province of Ontario. It was created in 1894 from townships of eastern Algoma District and west Nipissing District....

, Ontario

Ontario

Ontario is a province of Canada, located in east-central Canada. It is Canada's most populous province and second largest in total area. It is home to the nation's most populous city, Toronto, and the nation's capital, Ottawa....

, Canada

Canada

Canada is a North American country consisting of ten provinces and three territories. Located in the northern part of the continent, it extends from the Atlantic Ocean in the east to the Pacific Ocean in the west, and northward into the Arctic Ocean...

, and the source of the Montreal River. It is about 1.5 kilometre (0.93205910497471 mi) long and 0.7 kilometre (0.434960915654865 mi) wide, and lies at an elevation of 447 metres (1,467 ft) on the north side of the community of Island Lake

Island Lake, Sudbury District

Island Lake is a settlement in the Unorganized North Part of Sudbury District in northeastern Ontario, Canada. It is located about southwest of Chapleau, and southwest of the junction of Ontario Highway 101 and Ontario Highway 129 near the settlement of Devon on the Canadian Pacific...

. The primary outflow, at the east, is the Montreal River, which flows to Lake Superior at Montreal River Harbour.