This image was acquired from
flickr. It was marked as Public Domain or CC0 and is free to use. To verify, go to the source and check the information there.
Keywords from Image Description:
outdoor monochrome texture Lot Manganese for Americas War Machine. Deep in the Anaconda mine in the western state of Montana miner uses his gun to dig manganese out of the hard rock. His weapon is compressed airoperated drill with water connection which eliminates dust. Photographed circa . Office of War Information photograph.