Where was Ambush (1950) filmed?

1950 film by Sam Wood

Ambush (1950) was filmed in Simi Valley, Gallup and Lupton, 3 places named in its Wikipedia article, 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