Navionics would be the best bet
here's a link to Huron/Georgian Bay http://www.navionics.com/Charts_Plat...inumCode=652P+
Which chips are compatible with the Lowrance HD7 and also show the Canadian Side for Lake Huron/Georgian Bay. I go up there and fish for muskies and my friend needs a chip for his Lowrance Unit that covers that area. Any help/opinions will be appreciated. I also posted this message in the fishing electronics section.
Thanks, JayW
Navionics would be the best bet
here's a link to Huron/Georgian Bay http://www.navionics.com/Charts_Plat...inumCode=652P+