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Mississippi National River and Recreation AreaThe Mississippi River reflects its wooded shorelines through the metropolitan Twin Cities area.
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Mississippi National River and Recreation Area
Dredge
Boat outfitted to collect mussels.
Boat outfitted to collect mussels.
Mussels, One being in a person's hand  

Did You Know?
Under the right conditions, certain freshwater mussel species live for as many as 10 to 100 years. This lifespan is one of the longest for any creature on earth.

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Last Updated: September 20, 2006 at 16:57 EST