18-6Garmin GTN 725/750 Pilot’s Guide 190-01007-03 Rev. DForewordGettingStartedAudio &Xpdr CtrlCom/NavFPLDirect-ToProcChartsWpt InfoMapTrafflcTerrainWeatherNearestServices/MusicUtilitiesSystemMessagesSymbolsAppendixIndexTerrain more than 500 ft below the aircraft altitude (Black)Terrain is between 0 ft and 250 ft below the aircraft altitude (Yellow)Terrain is more than 250 ft abovethe aircraft altitude (Red)Terrain is between0 ft and 250 ft abovethe aircraft altitude(Orange)250 ft250 ftTerrain is between 250 ft and 500 ft below the aircraft altitude (Green)500 ftFigure 18-4 HTAWS Altitude/Color Correlation18.6 Basemap SymbolsSymbol DescriptionInterstate HighwayState HighwayUS HighwayNational Highway - 2-digit drawn insideSmall City or TownMedium CityLarge CityTable 18-8 Basemap Symbols
