ASSINIBOIA, a name formerly applied to two districts of Canada, but not now held by any. (1) A district formed in 1835 by the Hudson's Bay Company, having in it Fort Garry at the junction of the Red and Assiniboine rivers in Rupert's Land, North America. It extended over a circular area, with a radius of 5om. from Fort Garry. It was governed by a local council nominated by the Hudson's Bay Company. It ceased to exist when Rupert's Land was transferred to Canada in 187o. (2) A district of the North-west Territories, which was given definite existence by an act of the Dominion parliament in 1875. Assini boia extended from the western boundary of Manitoba (99° W. in 1875, and IoI ° 25' W. in 1881) to III ° W., and from 49° N. to 52° N. The name was a misnomer, as it barely touched the Assin iboine river. To the north of the district lay the district of Sas katchewan, so that when the two were united by the Dominion Act of 5905 they were somewhat changed in boundaries and the name Saskatchewan was given to the new province.