Where was Rolling Thunder filmed?

1977 film directed by John Flynn

Rolling Thunder (1977) was filmed in San Antonio, Del Rio, Pearsall and Helotes, 4 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

Places per Wikipedia's article

The Wikipedia article names 4 places. Each links to the sentence that says so.