(a) Geographical Location 



(b) Legal Description 



1.) /Ml of the area directly above Lock and Dam 12 (RM 556.7) from the 

 center of the navigation channel east to the Illinois shoreline and 

 northward to a line extending from RM 558,4 to the Blanding's 

 Landing boat ramp, including but not limited to all of the area 

 contained within the designated US. Military Reservation area. 



2.) All of the waters contained within Sylvan Slough from the Interstate 

 74 highway bridge (RM 485. 8)west to the lower tipof^\rscnal Island 

 (RM 482.6). 



3.) All of the area north of the center of the navigation channel to the 

 Illinois shoreline lying between RM 433 (New EJoston Boat 

 launching Ramp) to RM 433. 8 



A.) Pontoosuc Bay contained within and described as that area from the 

 center of the main navigation channel and the Illinois shoreline 

 located between RM 388.7 and RM 390 0. 



S.) All of the area east of the center of the navigation channel to the 

 Illinois shoreline from the mouth of the Des Moines River (RM 

 361.4) to the U.S. Route 136 bridge (RM 364.0) 



6.) /Ml of the area east of the center of navigation channel to the Illinois 

 shoreline between RM 314.0 and RM 3160 located upstream of 

 Hannibal, Missouri. 



7.) All of the area east of the center of navigation channel to the Illinois 

 shoreline between Rjver Mile 238.4 (Basting's Landing) and RM 

 240.8 (West Point Landing boat ramp). 



Figure 1. Upper Mississippi River mussel refuges (a) geographical location and (b) legal description. 



Figure!. Location of (a) Reach 15 in the Upper 

 Mississippi Rj\er (UMR) and (t) 

 enlarged \iew of Reach 1 5 to show 

 stud>' sites where quantitati\e mussel 

 samples were collected, 1994-95. 



(a) Reach 15 UMR 



Missouri 



(b) Study Sites - Reach 15 UMR 



Davenport 



kand Dam 14 



7 Dliniwek 

 -''' fRM 492.4) 



Rock Island 



Illinois 



