Ore Dressing Laboratory
Royalite No. 26 oil well
British American Oil Co. refinery, Coutts
Washoe mill and smelter, Anaconda
Washoe mill and smelter, Anaconda
Washoe mill and smelter, Anaconda
Fossil Canyon
Horseshoe Bend Dam near Bassano
Assay furnaces
Leonard Mine, Butte