Landscapes & nature
Koli National Park
National park in North Karelia region, Finland
Wikipedia names Koli National Park 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 Koli National Park. Each title’s page links to the sentence that says so.
Filming locations nearby
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Landscapes & nature
Koli
Finland · 6 km north-west
Mountain in Lieksa, Finland
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Landmarks & buildings
Vuonislahti
Finland · 12 km north-east
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Landscapes & nature
Pielinen
Finland · 23 km north-west
Lake in North Karelia, Finland
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Towns & cities
Lieksa
Finland · 30 km north
Town in the region of North Karelia in Finland
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Towns & cities
Eno
Finland · 32 km south-east
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Towns & cities Kontiolahti
Finland · 32 km south
Municipality in the region of North Karelia in Finland