In which location was Louis Riel buried?

Louis Riel was buried at the St. Boniface Cathedral in Manitoba. This location is significant not only because of Riel's connection to the province but also due to the cultural and historical importance of the cathedral within the Métis community and the broader narrative of Canada’s history. Riel is a notable figure in Canadian history, recognized for his role as a leader of the Métis people and his pivotal involvement in the Red River and North-West Rebellions, which were critical events in the struggle for Métis rights and identity. His burial place is often visited by those wishing to pay respects to a prominent and controversial figure who shaped Canada's history, particularly in relation to French-speaking Canadians and Indigenous rights.

The other options, while notable locations, do not pertain to Riel's actual burial site. Mount Royal Cemetery and Notre-Dame Basilica are both prominent in Canadian history and culture, but they are not connected to Riel specifically. The Vimy Memorial is a site dedicated to the Canadian soldiers who fought in World War I and is unrelated to Riel's legacy.