This is, as you might suspect, a straightforward film about how copper mining and smelting is done. Its actually pretty interesting considering its dry subject, since it sticks to the basics and doesnt dwell too much on technical details. Fans of explosives will enjoy the scenes of ore being blown up real good with dynamite, and fans of hell will enjoy the scenes of the fiery furnaces. Unfortunately, the print is not in very good condition, being dark and hard to see in a lot of spots. Still, that makes the scenes of molten copper even more dramatic. And it has a cool ending card, with The End over streams of molten copper, making you think the end of hell is at hand.
Ratings: Camp/Humor Value: **. Weirdness: ***. Historical Interest: ****. Overall Rating: ***.

This is a treasure trove of information on our most valuable resource COPPER! from the blasting (is it neccesary to use 15 sticks of dynamite in a tube then use a rod to ram it in?) to the dumping on to railcars, to the refining, and finally to the smelting, the film is never boring, although the topic may put some people off.