Mining on the American Frontier – Legends of America
In the 1860s, precious minerals were found in eastern Oregon, Montana, and Ido. In the 1870s, more strikes were made in the Black Hills of South Dakota and in Tombstone, Arizona. Other finds led to boom camps in the Coeur d''Alene region in Ido in 1883 and the Klondike Gold Rush in 1898.