Royalite No. 26 oil well
Old Man River valley
British American Oil Co. refinery, Coutts
Anaconda Copper Mining Co. smelter and wire mill
Anaconda Copper Mining Co. smelter and wire mill
Anaconda Copper Mining Co. smelter and wire mill
Anaconda Copper Mining Co. smelter and wire mill
Black Eagle Dam, Great Falls
View of Butte, Montana
Washoe mill and smelter, Anaconda