you looking for free maps or a place to buy them on the internet?
I have a few that i bought in the DR....
they can show a lot of detail on a select few towns ..maybe 10 towns...after that they show the whole country...but on that scale it isnt easy picking your way around.....
you can generally get from once city to the next ok....but if you want to wonder off the main roads...the maps wont help you much
bob