Synopsis
Shows mining methods. Reel 1 dramatizes a prospector's discovery of copper in Alaska. He finds a sponsor, stakes a claim, and begins a small mine. Reel 2, copper is mined at Kennecott, Alaska. Shows a quarry mine at Bisbee, Arizona, an open pit mine at Ruth, Nevada, and a pit mine at Jerome, Alaska. Reel 3 shows glacier mining in Alaska and shrinkage stop mining in Arizona. Reel 4 shows the filled stope method in Michigan; and the horizontal cut and fill method at Jerome; and vein mining at…
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Details
- Running time
- 46 minutes
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