Minnesota Public Radio slideshow:
Army Corps Navigation Study nears completion
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Dan McGuiness heads the Audubon Society's Upper Mississippi Campaign. He estimates as much as $10 billion is needed to restore the majority of the river's ecosystem. He's concerned that federal funding for restoration won't be enough. (MPR Photo/Erin Galbally)

Dan McGuiness heads the Audubon Society's Upper Mississippi Campaign. He estimates as much as $10 billion is needed to restore the majority of the river's ecosystem. He's concerned that federal funding for restoration won't be enough.

(MPR Photo/Erin Galbally)
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