![](http://www.alamy.com/thumbs/6/64B1AC0E-7E3F-4A47-8A48-A6F9CEB6CB9E/E3MJND.jpg)
Tom Melius, Ann Runstrom, Byron Karns, & Mark Hove (U of M and Macalester College)
Size: 1825px × 1369px
Photo credit: © NatPar Collection / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: croix, forest, historic, midwest, minnesota, mn, mussel, mussels, national, park, river, rivers, service, st., stcroix, usa, wi, wildlife, wisconsin