89° 



88° 



87° 



86° 



44" 



■43° 



42° 



MANITOWOC 



PORT WASHINGTON 



MILWAUKEE 



WAUKEGAN 



LUDINGTON 



_!_ 



STATUTE MILES 



WHITE LAKE 



MUSKEGON 

 "^^W GRAND HAVEN 



44°- 



43° 



cixr^~' 



SAUGATUCK 



BENTON HARBOR 



42° 



860 



Figure 2.--Map of southern Lake Michigan showing grounds trawled during this study. 



