Where was San Quentin filmed?

1937 film by Lloyd Bacon

San Quentin (1937) was filmed in Simi Valley, Calabasas, San Quentin Rehabilitation Center, Universal City and Griffith Park, 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