An image in the Speculator-Granite Mountain Mines, which shows bad practice of two miners drilling dry holes for dynamite. The copper dust on their faces is proof that the area is too dry and could cause Miner's lung disease.
Image of the Anaconda Copper Mining Company's Butte Mines Machine Shop, including the mine's superintendent, shift foremen, assistant foremen, and shift bosses. The shop was located in the Parrot Mine yard. Dated in October 1955.
The headframes in the image are listed from left to right, as follows: West Gray Rock Mine, Green Mountain Mine, East Gray Rock Mine, Wakeup-Jim Mine, and the Diamond Mine, all located in the Centerville neighborhood.