Marchington 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 Hudson Bay

Hudson Bay

Hudson Bay , sometimes called Hudson's Bay, is a large body of saltwater in northeastern Canada. It drains a very large area, about , that includes parts of Ontario, Quebec, Saskatchewan, Alberta, most of Manitoba, southeastern Nunavut, as well as parts of North Dakota, South Dakota, Minnesota,...

 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...

 located near Sioux Lookout

Sioux Lookout, Ontario

Sioux Lookout is a town in Northwestern Ontario, Canada. It has a population of 5,336 and an elevation of 1280 ft / 390 m. Known locally as the "Hub of the North", it is serviced by the Sioux Lookout Airport, Highway 72, and the Sioux Lookout railway station...

 in the Kenora District

Kenora District, Ontario

Kenora District is a district and census division in Northwestern Ontario, Canada. It was created in 1907 from parts of Rainy River District. It is, geographically, the largest division in that province; at 407,192.66 km2 it comprises almost 38 percent of the province's land area...

 of northwestern

Northwestern Ontario

Northwestern Ontario is the region within the Canadian province of Ontario which lies north and west of Lake Superior, and west of Hudson Bay and James Bay. It includes most of subarctic Ontario. Its western boundary is the Canadian province of Manitoba, which disputed Ontario's claim to the...

 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...

.

Hydrology

The lake lies roughly south-west to north-east, a distance of 22.5 km (14 mi). There are two major bay

Bay

A bay is an area of water mostly surrounded by land. Bays generally have calmer waters than the surrounding sea, due to the surrounding land blocking some waves and often reducing winds. Bays also exist as an inlet in a lake or pond. A large bay may be called a gulf, a sea, a sound, or a bight...

s on the lake: Northeast Bay, which forms the north-east end, and McDougall Bay, which forms a large hook at the south-west corner. Another arm forms a 5 km (3.1 mi) spike leading south-east from Northeast Bay.

The Marchington River

Marchington River (Ontario)

The Marchington River is a river in the Hudson Bay drainage basin located in Kenora and Thunder Bay Districts in northwestern Ontario, Canada. It travels from its head at Kashaweogama Lake in Thunder Bay District through a series of lakes to Marchington Lake, where it meets the Sturgeon River and...

 flows into the lake at McDougall Bay and is also the outflow of the lake, at the south-west corner at McDougall Mills

McDougall Mills, Ontario

McDougall Mills is an unincorporated place on the Marchington River between Botsford Lake and the McDougall Falls downstream and Marchington Lake upstream in Unorganized Kenora District in northwestern Ontario, Canada....

. The Sturgeon River

Sturgeon River (Marchington River)

The Sturgeon River is a river in the Hudson Bay drainage basin located in Kenora and Thunder Bay Districts in northwestern Ontario, Canada. It travels west from its head at Sturgeon Lake, Thunder Bay District, through several intermediate lakes, to the Marchington River at Marchington Lake, Kenora...

 is another main source, and flows into the lake at the spike-shaped arm at the south-eastern end. The North River

North River (Ontario)

North River may refer to one of five rivers in Ontario, Canada:*North River in Kenora District, in the Hudson Bay drainage basin, which flows into Marchington Lake on the Marchington River near the unincorporated place of Ghost River*In Nipissing District:...

 flows into the middle of the lake on the north-west side. Other inflows are (clockwise from north-east) Watin Creek, Kinniwap Creek, Mall Creek, Martin Creek and Kee Creek. The Marchington River flows via the English River

English River (Ontario)

The English River flows through Lac Seul to join the Winnipeg River. The river is 615 km in length. There are several hydroelectric plants on this river.Tributaries of this river include the Vermilion River and the Wabigoon River...

, the Winnipeg River

Winnipeg River

The Winnipeg River is a Canadian river which flows from Lake of the Woods in the province of Ontario to Lake Winnipeg in Manitoba. This river is long from the Norman Dam in Kenora to its mouth at Lake Winnipeg. Its watershed is in area, mainly in Canada. About of this area is in northern...

 and the Nelson River

Nelson River

The Nelson River is a river of north-central North America, in the Canadian province of Manitoba. Its full length is , it has mean discharge of , and has a drainage basin of , of which is in the United States...

 to Hudson Bay.

Economy

The CN

Canadian National Railway

The Canadian National Railway Company is a Canadian Class I railway headquartered in Montreal, Quebec. CN's slogan is "North America's Railroad"....

 transcontinental rail line crosses the lake at its south-eastern arm near Robinson

Robinson, Ontario

Robinson is a railway point and unincorporated place just west of an arm of Marchington Lake on the Sturgeon River in Unorganized Kenora District in northwestern Ontario, Canada....

, travels inland, then continues along the south-west corner of the lake past Ghost River

Ghost River, Kenora District

Ghost River is an unincorporated place on the south side of Marchington Lake on the Marchington River in Unorganized Kenora District in northwestern Ontario, Canada....

and McDougall Mills.