The Great Falls Reduction Department![locked](https://westernmininghistory.com/wp-content/themes/generatepress-child/images/locked-icon.png)
Processing ore from the great mines of Butte, Montana required significant industrial capacity spread over a large area of the state. With over 30 photos, this article takes a detailed look at the massive facility known as the Great Falls Reduction Department, where copper and zinc were refined into finished products. Continue Reading