Where was The Only Good Indian filmed?

2009 film by Kevin Willmott

The Only Good Indian (2009) was filmed in Fort Larned National Historic Site, Ha Ha Tonka State Park and Monument Rocks, 3 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 3 places. Each links to the sentence that says so.