Assiniboine River in the context of "Whitesand River (Saskatchewan)"

Winnipeg (/ˈwɪnɪpɛɡ/ ) is the capital and largest city of the Canadian province of Manitoba. It is centred on the confluence of the Red and Assiniboine rivers. As of 2021, Winnipeg had a city population of 749,607 and a metropolitan population of 834,678, making it Canada's sixth-largest city and eighth-largest metropolitan area.

The city is named after the nearby Lake Winnipeg; the name "Winnipeg" comes from the Western Cree words for "muddy water" – winipīhk. The region was a trading centre for Indigenous peoples long before the arrival of Europeans; it is the traditional territory of the Anishinaabe (Ojibway), Ininew (Cree), Oji-Cree, Dene, and Dakota, and is the birthplace of the Métis Nation. French traders built the first fort, Fort Rouge, on the site in 1738. A settlement was later founded by the Selkirk settlers of the Red River Colony in 1812, the nucleus of which was incorporated as the City of Winnipeg in 1873. Being far inland, the city's climate is extremely seasonal (continental) even by Canadian standards, with average January highs of around −11 °C (12 °F) and average July highs of 26 °C (79 °F).

The Red River Colony (or Selkirk Settlement), also known as Assiniboia, was a colonization project set up in 1811 by Thomas Douglas, 5th Earl of Selkirk, on 300,000 square kilometres (120,000 sq mi) of land in British North America. This land was granted to Douglas by the Hudson's Bay Company in the Selkirk Concession. It included portions of Rupert's Land, or the watershed of Hudson Bay, bounded on the north by the line of 52° N latitude roughly from the Assiniboine River east to Lake Winnipegosis. It then formed a line of 52° 30′ N latitude from Lake Winnipegosis to Lake Winnipeg, and by the Winnipeg River, Lake of the Woods and Rainy River.

West of the Selkirk Concession, it is roughly formed by the current boundary between Saskatchewan and Manitoba. These covered portions consisted of present-day southern Manitoba, northern Minnesota, and eastern North Dakota, in addition to small parts of eastern Saskatchewan, northwestern Ontario, and northeastern South Dakota. The lands south of the 49th parallel north ceased to be a part of the Red River Colony following the signing of the Treaty of 1818, in which the United Kingdom agreed to cede this territory to the United States.

Fort Rouge was a fort located on the Assiniboine River in Manitoba, Canada, on the site of what is now the city of Winnipeg. Its exact location is unknown. Its name in English means "red fort".

In 1738 Sieur Louis Damours de Louvières built Fort Rouge on the Assiniboine River for Pierre Gaultier de Varennes, sieur de La Vérendrye. La Vérendrye and his sons, Louis-Joseph and Francois, proceeded further west on the Assiniboine and constructed Fort La Reine. The fort seems to have had a primary purpose as a depot and was abandoned by 1749.