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Renville County geology among state's most interesting

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OLIVIA -- Renville County's underlying geology is among the state's most interesting, according to Dale Setterholm of the Minnesota Geological Survey at the University of Minnesota.

Exposed gneiss along the Minnesota River in the Morton and Granite Falls areas is among the world's oldest rock, dating to some 3 billion years ago.

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Tom Cherveny
Tom Cherveny is a regional and outdoor reporter with the West Central Tribune in Willmar, MN.
(320) 214-4335
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