🌐EnglishEnglishFrançaisItalianoNederlands日本語EntityQ7619602· pop 6· linked from 12 articlesStony Ridge Observatoryastronomical observatory in CaliforniaWikidata factsOfficial websitestony-ridge.orgImageStony Ridge Observatory buildings 2014-11-05.jpgvia Wikidata · CC0On the mapAvailable in 6 languagesFrançaisItalianoEgyptian ArabicEsperantoUrduvia Wikidata sitelinks · CC0ConnectionsastronomyEntitygeographic coordinate systemEntityCategories1957 establishments in CaliforniaAngeles National ForestAstronomical observatories in CaliforniaEducational buildings in Los Angeles County, California