Helena, Montana 1875 Enmarcado
Ben Bow Chromite Mine Operations Stillwater County 1942
Aerial View of Ben Bow Chromite Mine Montana 1942
1942 Black and White Photo of Chromite Ore Mining Operations
Ben Bow Chromite Mill Process Stillwater Montana 1942
Ben Bow Chromite Mill Conveyor Belt Stillwater 1942
Workers Mucking Chrome Ore at Ben Bow Mine 1940s
Anaconda Smelter Copper Processing September 1942
Anaconda Smelter Operations Montana September 1942
Anaconda Smelter Copper Processing Operations September 1942
Anaconda Smelter Manganese Conveyor September 1942
Anaconda Smelter Conveyor System September 1942
Anaconda Smelter Grating System September 1942
Manganese Grating Process Anaconda Smelter September 1942
Anaconda Smelter Workman Adjusts Gas Fuel 1942
Anaconda Wire and Cable Company Great Falls Montana 1940s
Great Falls Wire Bars by Anaconda Wire September 1942
Anaconda Wire Bars Great Falls Montana 1942
Great Falls Furnace Refinery Worker 1942
Great Falls Montana Copper Refinery September 1942
1942 Vintage Copper Refinery in Great Falls Montana
1942 Vintage Copper Refinery Image Great Falls Montana
Inspector at Anaconda Copper Refinery Great Falls 1942
Copper Cathodes from Anaconda Wire and Cable Company 1942
Workmen at Anaconda Copper Mining Control Board 1942
Great Falls Montana Wire Rod Production September 1942
Copper Wire Bars Production in Great Falls Montana 1942
Molds for Copper Processing in Great Falls 1942
Anaconda Smelter Montana September 1942 Vintage Photo
Anaconda Copper Smelter Industrial Operations 1942
Anaconda Smelter Copper Anode Casting September 1942
Anaconda Smelter Copper Anodes September 1942
Anaconda Smelter Workers Pouring Copper Anodes 1942
Anaconda Copper Smelter Montana September 1942 Photo
1942 Anaconda Smelter Flue Damper System Image
Anaconda Smelter Montana Ore Cars September 1942
Anaconda Smelter Montana Ore Cars and Smokestack 1942
Anaconda Smelter Crusher in Montana September 1942
1942 Vintage Guard at Anaconda Copper Mining Smelter
Anaconda Smelter Kiln in Anaconda Montana September 1942
Anaconda Smelter Electromagnet September 1942
Anaconda Smelter Montana 1942 with Largest Smokestack
Anaconda Smelter with Tallest Smokestack 1942
Anaconda Smelter Flotation Machine September 1942