Landscapes & nature
Caswell Memorial State Park
State park in California, United States
Wikipedia names Caswell Memorial State 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 Caswell Memorial State Park. Each title’s page links to the sentence that says so.
The World's Greatest AthleteComedy film1973
Filming locations nearby
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Landscapes & nature
Stanislaus River
United States · 6 km south-west
River in California, United States
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Towns & cities
Ripon
United States · 7 km north-east
City in California, United States
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Landscapes & nature
Tuolumne River
United States · 10 km south
River in California, United States
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Towns & cities
Modesto
United States · 17 km east
City in and county seat of Stanislaus County, California, United States
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Streets & squares
Lion Bridge
United States · 19 km south-east
Bridge in United States of America
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Towns & cities
Tracy
United States · 22 km west
City in San Joaquin County, California, United States