The Icon Legend for the Nuvi 660


Does anyone know of a more accurate map legend for the garmin 660 other than their web site. I have noticed on my screen at certain times i have green and red dots, but when you put the cursor over the dot it doesn't give you a description. The only icon that matches are under the marine navaids( lighted navaid, green,red etc.) if so why are there marine icons on surface streets?

try zooming in closer than

try zooming in closer than those icons should show up