LakeMaster chip trouble with river

I’ve got a MN and LOTW/Rainy chip and they work just fine. I fish WI, too, so I bought a WI chip. Tried the WI chip today on Wisconsin River between Mosinee dam and Lake Dubay….river chart shows solid red, and when I zoom out it shows contour lines for nearby bodies of water (Lake Dubay and BEP Flowage, which are part of the same system), but not the river.
What’s the scoop! Does LakeMaster NOT chart major rivers? I fish Mississippi, too, and it would suck if I’m waisting money on expensive chips that don’t chart a lot of the water I fish.
Does anyone else have this problem?

Not every body of water is charted, sometimes that’s a good thing.

Time to start making your own maps

With a Bird you need to get a Zero Lines card, Garmin just any blank SD card works.

B-man wrote:

Not every body of water is charted, sometimes that’s a good thing.

Time to start making your own maps

With a Bird you need to get a Zero Lines card, Garmin just any blank SD card works.

Agreed. The little bit garmin gives me on my area of the river is like looking at a old map book from 2000.
Add a chip and as I figure it out, garmin doesn’t forget it