Where was Chill Factor filmed?
1999 film by Hugh Johnson
Chill Factor (1999) was filmed in Vernal, Liberty, Mexican Hat and Flaming Gorge Dam, 4 places named in its Wikipedia article, in the United States. Wikidata itself records the shoot only as South Carolina, Utah. Each place says where its claim comes from.
Places per Wikipedia's article
The Wikipedia article names 4 places. Each links to the sentence that says so.
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Towns & cities
Mexican Hat
United States
Census-designated place in San Juan County, Utah, United States
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Towns & cities Liberty
United States
City in South Carolina, United States
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Landmarks & buildings
Flaming Gorge Dam
United States
Concrete thin-arch dam on the Green River in northern Utah, United States
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Towns & cities
Vernal
United States
City in and seat of Uintah County, Utah, United States
Recorded only at country level
Also filmed in South Carolina, Utah, but the exact places are not known, so they are not on the map.
Filming locations that are mapped there: United States