Where was Pork Chop Hill filmed?
1959 film by Lewis Milestone
Pork Chop Hill (1959) was filmed in San Fernando Valley, 1 place named in its Wikipedia article's Filming section, in the United States. Wikidata itself records the shoot only as California. Each place says where its claim comes from.
Places per Wikipedia's Filming section
Wikipedia’s Filming section names 1 place. Each links to the sentence that says so.
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Landscapes & nature
San Fernando Valley
United States
Urbanized valley in Los Angeles County, California, United States
“Some of the location shooting was conducted in California near Westlake Village and in San Fernando Valley.” Wikipedia
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
InnerspaceScience fiction film1987