Thread: Is the card really needed?

Originally Posted by Jman5626

That is correct. The navonics have Grayson and yatesville, but not greenbo .
Lakemaster have greenbo and yatesville, but not Grayson. So I’ll probably end up getting both if I can find them used.
I’ve got a lot to learn. And that starts tomorrow when I take my new bird out on yatesville for the first time


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I don't know about "Birds" ... but, my Lowrance Elite 5DSI & Hook 7 both had contours on Taylorsville Lake on the basemap. But ... they were 7, 17, 27ft depth contours.