Quote Originally Posted by Mapperoni View Post
There is a limit to the amount of maps (different FID's) that can be used, on my 62s the limit is 16 maps (basemap included) and that's for internal memory + SD card.
I think it more depend on amount of total subfile in all maps. All Garmin have different limit for total subfile amount. NT format is more progressive in aspect of size ratio. But this maps is in old format and I am remember what there was special utility to merging small map to more big for decrease maps segment quantity.