Landscapes & nature
Mendip Hills
Range of limestone hills to the south of Bristol and Bath in Somerset, England
Wikipedia names Mendip Hills as where 1 film or series was filmed; its page links to the sentence that says so. Wikidata records no shoot here yet.

Filmed here, per Wikipedia
Wikipedia says these were filmed in Mendip Hills. Each title’s page links to the sentence that says so.
Filming locations nearby
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Landscapes & nature
Cheddar Gorge
England · 3 km south-west
Valley in Somerset, England
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Towns & cities
Burrington Camp
England · 3 km north
Hillfort in North Somerset, England, UK
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Towns & cities
Cheddar
England · 4 km south-west
Village and civil parish in Somerset, England, United Kingdom
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Towns & cities
Portishead
England · 4 km north-west
Town in Somerset, England, United Kingdom
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Towns & cities
Axbridge
England · 6 km west
Town in Somerset, England
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Towns & cities East Harptree
England · 8 km east
Village in Somerset, England, UK