8-4Garmin GTN 625/635/650 Pilot’s Guide 190-01004-03 Rev. FForewordGettingStartedXpdr CtrlCom/NavFPLDirect-ToProcWpt InfoMapTrafflcTerrainWeatherNearestServices/MusicUtilitiesSystemMessagesSymbolsAppendixIndexNOTE: Map overlays for StormScope or Traffic are prevented frombeing overlaid on the main map without a heading source or while UserNavigation Angles are selected.8.1.1.1 TopoThe Topo Data option selects whether the colored topographical features aredisplayed. Traffic, Land Data, Terrain, and Obstacles will still be displayed evenwith Topo Data turned off.1. While viewing the Map Menu, touch Map Overlays key, andthen the TOPO Map Overlay key to toggle the Topo setting.Topo Map Overlay Off Topo Map Overlay OnFigure 8-4 Topo Map Overlay Selections2. When the Topo Map Overlay is toggled off, all topographiccolor features are removed.8.1.1.2 AirwaysThe Airways option allows you to select the airways that are shown on theMap page. All, Low only, and High only Airways may be selected. When Off isselected, airways will not be shown.1. While viewing the Map Menu, touch Map Overlays key,and then the Airways Map Overlay key to select the Airwaysviewed. Selections are: Off, Low, High, and All.Low AirwayHigh AirwayFigure 8-5 Map Menu Airways Map Overlay Selection2. Low Airways are shown as grey lines. High Airways are shownas green lines.
