Towns & cities
Penwyllt
Hamlet in the county of Powys, Wales
Wikipedia names Penwyllt 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 Penwyllt. Each title’s page links to the sentence that says so.
Young WinstonBiographical film1972
Filming locations nearby
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Landscapes & nature Sgwd Henrhyd
Wales · 4 km south
Waterfall in Wales
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Towns & cities
Coelbren
Wales · 4 km south
Village in mid-Wales, United Kingdom
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Landscapes & nature
Llyn y Fan Fach
Wales · 8 km north-west
Reservoir in Carmarthenshire, Wales, UK
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Landscapes & nature
Brecon Beacons
Wales · 17 km east
Mountain range in Wales
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Towns & cities
Pontardawe
Wales · 18 km south-west
Town in Neath Port Talbot, Wales
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Towns & cities
Tonna
Wales · 19 km south-west
Village in Wales