🌐EnglishEnglishEspañolFrançaisNederlandsالعربيةEntityQ3348375· pop 5· linked from 18 articlesCalifornia Volcano ObservatoryAlso known as Long Valley Observatoryvolcano observatory in Eastern CaliforniaWikidata factsOfficial websitevolcanoes.usgs.gov/observatories/calvoImageMonoCraters LongValley.gifSources (3)volcanoes.usgs.goven.wikipedia.orgwikidata.orgvia Wikidata · CC0On the mapAvailable in 5 languagesEspañolFrançaisالعربيةNederlandsvia Wikidata sitelinks · CC0ConnectionsMono–Inyo CratersEntityUnited States Geological SurveyEntityCategories2012 establishments in CaliforniaBuildings and structures in Mono County, CaliforniaEarth sciencesGovernment agencies established in 2012Inyo National ForestSierra Nevada (United States)United States Geological SurveyVolcanism of CaliforniaVolcanism of NevadaVolcano observatories