Sierra County, California is one of the West's top gold producing regions. With around 1,000 active placer claims, it makes the top spot on our list of top counties to find gold. The County also has around 500 active lode claims.
Sierra County has 1,064 mine records in the USGS MRDS database. Gold mines are overwhelmingly the most common mine type, with 991 mines being listed with gold as a primary commodity.
Sierra County has fourteen gold mines that the USGS identifies as significant producers, which is notable given that it is not uncommon for many counties in the West to have no mines considered significant. The Sixteen to One and Sierra Buttes mines are the county's largest producers.
Nevada County contains at least 12 historically important gold mining districts.