COPPER: Newest U. S. Mine

The pictures at top and bottom of this page illustrate why the U.S. can't expand copper production fast enough to meet its needs—four years elapsed between them. It took that long for Phelps Dodge to behead a mountain and lay bare the mile-long, 400-ft. thick clay ore body (below) for exploitation. This week Phelps Dodge is putting finishing touches on this new $35,000,000 Morenci mine in Arizona; next month it will start to smelt 6,500 tons of copper a month.

Since the 1942 U.S. copper deficiency is estimated at 770,000 tons, Morenci comes in none too soon. OPM's copper curtailment...

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