• Canoeists paddle by tree lined shores

    Saint Croix

    National Scenic Riverway WI,MN

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  • Caution - High River Levels and Changing Conditions

    The Namekagon and St. Croix Rivers are experiencing late season high water levels due to recent rainfall. River users should prepare for swifter than normal currents, cool water temperatures, and floating or submerged debris in the rivers. More »

Insects, Spiders, Centipedes, Millipedes

A damselfly, landed on a green leaf.  The wings a black tipped and the body is a shiny green.

A River Jewelwing damselfly lands on a leaf.

NPS

Insects can be ugly or beautiful. Some mange to be both at different stages of their life. At times The Riverway can have too many insects, with mosquitoes, black flies and ticks abounding.

Dragonflies are part of what makes the Riverway special. A new species, the St. Croix Snaketail, was discovered in 1993 and has brought attention to the variety and quantityof dragonflies to be seen both in and out of the water. A list of Dragonfly species.

Butterflies also add color to the Riverway. From early spring to late fall they can be seen flying and landing on plants and river shorelines. A list of Butterfly species

Did You Know?

Two mussels or clams on sand.  They are yellowish brown with greenish stripes

St. Croix National Scenic Riverway is home to 40 species of native mussels. Throughout the United States their populations are considered highly threatened. The Higgins Eye Pearly mussel is on the endangered species list.