How detailed is the base map in the HB 789? Are there updates for the map?

The base map has some bodies of water with some contour lines. I checked three lakes for the contour lines and two had 10' contours. Kerr in Va., Guntersville. Lake Fork did not have any contour lines, but the lake just West of there does have the 10' lines. The base map cannot be updated.

Give me some bodies of water you are interested in and I'll check to see if they are included.

Thanks Wayne

I fish some small lakes in SE PA, the Del. River and the Jersey shore. I'll be using the maps mostly for finding my way around the back bays in Jersey.

The Lowrance mapping is OK for what I use it for but I was wondering if the HB was better. If it has contours then I guess it is better.

Thanks again!!