A Anonymous Guest Dec 2, 2015 #1 Does the GP1670 or 1870 have any detail of inland lakes in the internal map data? Or do you have to get a C-map? Thanks, John
Does the GP1670 or 1870 have any detail of inland lakes in the internal map data? Or do you have to get a C-map? Thanks, John
Johnny Electron Administrator Staff member Dec 2, 2015 #2 It needs a C-map 4D chart card for the area.