Where was 49th Parallel filmed?

1941 film by Michael Powell

49th Parallel (1941) was filmed in London, Niagara Falls, Winnipeg, Banff National Park, Niagara Falls, Yoho National Park and 3 more places, 9 places named in its Wikipedia article, in the United Kingdom, Canada. Wikidata records no filming location for it at all, so the article is the only recorded source. Each place says where its claim comes from.

See them on the map → Wikipedia Source data