LaGrange Locks and Dam 



Meredosia 



Hannibal 



Saverton «V\Locks 



x and Dam 22 



ILLINOIS 



MISSOURI 



North 



Locks and 



lton 



Scale in Miles 

 (3 5 10 15 



ocks and Dam 

 6 



St. Louis 



Figure 1. Map of the study area, showing the locks, dams, towns, and cities. 



