Twin Cities Ecological Services Field Office

Midwest Region


Twin Cities Field Office

4101 American Boulevard East
Bloomington, MN 55425
Phone: 612-725-3548
Fax: 612-725-3609
TTY: 1-800-877-8339 (Federal Relay)




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Minnesota Endangered Species Youth Art Contest

Winged maple leaf (Quadrula fragosa)


Winged Mapleleaf

Photo by U. S. Fish and Wildlife Service; Phil Delphey

The winged mapleleaf is an endangered freshwater mussel found in the St. Croix River in Minnesota and Wisconsin, the Ouachita and Saline Rivers in Arkansas, and the Bourbeuse River in Missouri. The St. Croix River contains the only population known to be reproducing. Propagation efforts are progressing with hopes of restocking portions of the mapleleaf's historic range.


Winged Mapleleaf in Minnesota


Species Overview linked to the National USFWS Endangered Species website

Fact Sheet: Winged Mapleleaf


Species Profile (links to National U.S. Fish & Wildlife Service web pages)


Winged Mapleleaf photo




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Last updated: April 15, 2015