The
Selkirk Concession was a land grant issued by the
Hudson's Bay Company to
Thomas Douglas, 5th Earl of Selkirk, in 1811. The Selkirk Concession, also known as Selkirk's Grant, included the 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, then by the line of 52° 30' N latitude from
Lake Winnipegosis to
Lake Winnipeg, and then by the
Winnipeg River,
Lake of the Woods and
Rainy River; on the west roughly by the current boundary between Saskatchewan and Manitoba; and on the south by the (mostly very slight) rise of land marking the extent of the watershed. This covered portions 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.