Four Mile Bay is a 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...

 on Trout Lake

Trout Lake (Ontario)

Trout Lake is a lake in municipalities of East Ferris and North Bay, Nipissing District in Northeastern Ontario, Canada, approximately east of the much larger Lake Nipissing. Trout Lake is the source of the Mattawa River and a significant body of water on a well-known historic North American...

 in the city of North Bay

North Bay, Ontario

North Bay is a city in Northeastern Ontario, Canada. It is the seat of Nipissing District, and takes its name from its position on the shore of Lake Nipissing.-History:...

, Nipissing District

Nipissing District, Ontario

Nipissing District, Ontario is a district in Northeastern Ontario in the Canadian province of Ontario. It was created in 1858. The district seat is North Bay.In 2006, the population was 84,688...

 in Northeastern

Northeastern Ontario

Northeastern Ontario is the region within the Canadian province of Ontario which lies north and east of Lakes Superior and Huron.Northeastern Ontario consists of the districts of Algoma, Sudbury, Cochrane, Timiskaming, Nipissing and Manitoulin; and the single-tier municipality of Greater...

 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...

.

The bay is about 5.4 kilometres (3.4 mi) long, and is separated from the rest of Trout Lake by an equally long peninsula

Peninsula

A peninsula is a piece of land that is bordered by water on three sides but connected to mainland. In many Germanic and Celtic languages and also in Baltic, Slavic and Hungarian, peninsulas are called "half-islands"....

. It varies from 0.2 to 1.4 km (0.124274547329961 to 0.869921831309729 mi) wide, the former at the mouth of the bay.

The community of Camp Champlain

Camp Champlain, Ontario

Camp Champlain is an unincorporated area and community in city of North Bay, Nipissing District in Northeastern Ontario, Canada. The community is located on a long, unnamed peninsula that separates Four Mile Bay from the rest of Trout Lake....

is on it southern shore, and Four Mile Creek enters Trout Lake at the bay.