When I click on full details I get nothing. Would like to know what maps comes with it and can I get

These include Humminbirds Unimap. Details below. We do not have any more information for these on our site but Humminbord should on their site: https://www.humminbird.com/learn/mapping/basemap UNIMAP CARTOGRAPHY The Humminbird UniMap is a built-in map covering the contiguous US coastline, inland lakes and rivers at 30 meters per pixel resolution