1 Empire Mine State Historic Park
10791 East Empire St, Grass Valley, CA 95945-7432
By: Elizabeth Sedway
The Empire Mine is the site of the oldest, largest, and richest gold mine in California. From 1850 to its closing in 1956, it produced ...
More10791 East Empire St, Grass Valley, CA 95945-7432
By: Elizabeth Sedway
The Empire Mine is the site of the oldest, largest, and richest gold mine in California. From 1850 to its closing in 1956, it produced ...
More