Where was Duel in the Sun filmed?

1946 film by King Vidor

Duel in the Sun (1946) was filmed in Tucson, Thousand Oaks, Tuolumne County, San Fernando Valley and Wildwood Regional Park, 5 places named in its Wikipedia article, in the United States. Wikidata itself records the shoot only as California. Each place says where its claim comes from.

See them on the map → Wikipedia Source data

Places per Wikipedia's article

The Wikipedia article names 5 places. Each links to the sentence that says so.

Recorded only at country level

Also filmed in California, but the exact places are not known, so they are not on the map.

Filming locations that are mapped there: United States

Also shot in these places