• Mississippi National River and Recreation Area

    Mississippi

    National River & Recreation Area Minnesota

Mussel Siphon

A mussel sticking out its siphon.
A mussel sticking out its siphon.

Did You Know?

A slow and shallow section of Itaska.

At the headwaters of the Mississippi, the average surface speed of the water is 1.2 miles per hour. People typically walk 3 miles per hour.