Where was This Earth Is Mine filmed?

1959 film by Henry King

This Earth Is Mine (1959) was filmed in Napa County, Beringer Vineyards, Beaulieu Vineyard, Inglenook and Spring Mountain Vineyard, 5 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