Kellogg Idaho Shoshone County Bunker Hill & Sullivan Smelter 1920 Real Photo Postcard

The Bunker Hill & Sullivan Mining Company, located in Kellogg, Idaho, was a foundational enterprise within the rich Coeur d'Alene Mining District. Discovered in 1885, it rapidly grew into one of the nation's most prolific producers of lead, silver, and zinc, driving the economic development of Kellogg and the surrounding region. The postcard likely captures the expansive industrial complex, including its concentrators and smelter, which were essential for processing vast quantities of ore from the underlying mines.