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Copper and nickel deposits show promise, but no paydirt in Carlton, Aitkin counties

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It's just a little purple squiggle on a map of Minnesota's bedrock, a long, thin arc that cuts across the Carlton and Aitkin county lines.

The squiggle might turn out to be nothing. But geologists with Utah-based Kennecott Exploration Co. have been drilling holes along that squiggle since 2001 in an effort to determine just what might be down there, and whether it might be worth digging up.

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