Navionics lists most lakes in ky as high definition lake, including t ville, grl, Cumberland, ky lake, Barkley, barren River lake, cave run and several others I can't remember. The hot maps platinum east card includes Ky. and includes 3d and satellite overlay capable mapping on all the HD lakes along with 1ft contours and hi def sonar charts. I believe that card is $199.
The navionics plus card comes with nautical charts only I believe, but the best part about it is for the first yr after purchase, you can download the mapping data from any lake in any state that you want for free. This card offers 1 ft contours and sonar charts but no 3d or satellite overlay.
Let me say that I am in no way literate when it comes to these map cards. This is just info that I've collected through recent research. We are also in search of a good map card and navionics is the only one I've found that offers all of the ky lakes we fish in high definition. We will likely end up with the navionics plus card so we can download the data from out of state lakes that we fish that aren't included in the platinum east card.