Landscapes & nature
Mount Wilson
Mountain in California, USA
Wikipedia names Mount Wilson 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 Mount Wilson. Each title’s page links to the sentence that says so.
The Young LionsWar film1958
Filming locations nearby
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Landmarks & buildings Mount Wilson Observatory
United States · under 1 km
Astronomical observatory in Los Angeles County, California
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Landscapes & nature
Mount Lowe
United States · 4 km west
Mountain in California, United States of America
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Landmarks & buildings
Alverno High School
United States · 6 km south
Private, all-female school in Sierra Madre, , California, USA
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Towns & cities
Sierra Madre
United States · 7 km south
City in Los Angeles County, California, United States
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Landmarks & buildings Crank House
United States · 7 km south-west
House in Altadena, California
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Landmarks & buildings
Woodbury-Story House
United States · 8 km south-west
Historic house in California, United States