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  1. Volcano, California - Wikipedia

    George Madeira established California's first recorded astronomical observatory in 1860 which is where the Great Comet of 1861 was discovered (in the U.S.). It is registered as a California …

  2. California has active and hazardous volcanoes | U.S ...

    Dec 7, 2023 · California is host to every type of volcano. The specific hazards to people and property depend on which volcano erupts, the style (effusive or explosive), the volume of lava, …

  3. Volcano California – Western Mining History

    A devastating fire in 1859 didn’t help matters much. California’s first astronomical observatory built in 1860, however, did. It was constructed near the town, and the site is now an official …

  4. Volcano, California: A Hidden Little Gem In Amador County

    Volcano is a quaint, small town in the Sierra Nevada foothills. It’s an easy day trip from the valley and other foothill towns. With a mix of visitors and very friendly locals, it is easy to see what …

  5. Volcano, CA: All You Must Know Before You Go (2026) - Tripadvisor

    Volcano Tourism: Tripadvisor has 398 reviews of Volcano Hotels, Attractions, and Restaurants making it your best Volcano resource.

  6. Volcano, CA Map & Directions - MapQuest

    Get directions, maps, and traffic for Volcano, CA. Check flight prices and hotel availability for your visit.

  7. California Volcano Information | Seismic Safety Commission

    Volcanoes: More than 500 volcanic vents have been identified in the State of California. At least 76 of these vents have erupted, some repeatedly, during the last 10,000 years. Sooner or …