"Volcano (formerly, Soldier's Gulch and The Volcano) is a census-designated place in Amador County, California. It lies at an elevation of 2070 feet (631 m). The population was 115 at the 2010 census. It is located at 38°26'35?N 120°37'51?W, just north of Pine Grove. The town is registered as a California Historical Landmark. The community is in ZIP code 95689 and area code 209." (
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