 DATE: When he runs into Del Gue late in the movie Johnson tells Del  that he may head to Canada. In the 1830s the country of Canada was  not yet formed, and while there was a region with the name it was  far to the east of the Crow and Flathead territories. The territory  Johnson was most likely referring to would be Ruperts Land or  possibly the territory of British Columbia, those would be the non  US territories closest to the Crow Nation.