Figure 3. Location of Sylvan Slough stud>- site (RM 485.8) in 

 Reach 15 of the Upper Mississippi River. 



Figure 4. Locauon of Case-IH stud>- site (RM 488.5) in 

 Reach 15 of the Upper Mississippi River. 



Figure 5. Location of Ilhmuek study site (RM 492.4) in 

 Reach 15 of the Upper Mississippi River. 



