Where was The Big Sky filmed?
1952 film by Howard Hawks
The Big Sky (1952) was filmed in Grand Teton National Park, 1 place named in its German Wikipedia’s Hintergrund section, in the United States. 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.
Places per German Wikipedia's Hintergrund section
German Wikipedia’s Hintergrund section names 1 place. Each links to the sentence that says so.
Also shot in these places
Rocky IVAction film1985