Copper Mining in Arizona

Produced by Phelps Dodge corporation. 3-reel film showing open-pit mining methods depicted at Morenci and, Ajo, and Jerome, and underground mining at Bisbee. The open-pit methods include diamond drilling, air drilling and blasting, removal of waste, churn drilling and blasting, and transportation of ore. Underground include tunneling, driving, sinking wings and shafts with a rotary drill, scraping ore into chutes, transportation to ore pockets at the shaft, hoisting to the surface, and transportation to the smelter. School management.