Where was Stagecoach (1966) filmed?

1966 film by Gordon Douglas

Stagecoach (1966) was filmed in Boulder, Nederland and Caribou Ranch, 3 places named in its Wikipedia article's Locations 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.

See them on the map → Wikipedia Source data