[QUOTE=Wannabe...;1234685]Well, what do ya know. There is a Okitibbee available for free.

SteveJ, follow this link:

Enhanced Lake Maps

and see if your unit is listed.

Then click on Download Maps

Let me know if it's worth a flip.

Thanks, don't have a Lowrance unit of any kind, just that Garmin GPSMAP 76CX. But if what I read it will upgrade any listed base map correct, download to a chip and put it in your Lowrance?