List of Figures 



Figure Description Page 



Location and legal description of Upper Mississippi River 

 Mussel Refuges established by the state of Dlinois in July 1988. . 



Location of (a) Reach 15 in the Upper Mississippi River and (b) 

 three study sites in Reach 15 



Location of Sylvan Slough study site (RM 485.8) in Reach 15 

 of the Upper Mississippi River 



4. Location ofCase-m study site (RM 488 5) in Reach 15 of the 

 Upper Mississippi River 



5. Location ofllliniwek study site (RM 492.4) in Reach 15ofthe 

 Upper Mississippi River 



