Nevada County, California is one of the West's top gold producing regions. With over 600 active placer claims, it makes number 2 on our list of top counties to find gold. The County also has around 150 active lode claims.
The lode mines of the Grass Valley and Nevada City districts were the most productive in the state. The Empire Mine is California's largest single gold producing mine, which was also one of the nations longest lived mines having operated continually between 1850 and 1940.
Nevada County has thirty three 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.
Nevada County contains at least 15 historically important gold mining districts.