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Map Borders
Settings: Hidden, MMC/SD Only, All Visible;
Default = MMC/SD Only
Map Borders allows you to display or hide map borders. The dotted lines of a
Map Border indicate an area which contains a different map.
Spot Soundings
Settings: Hidden, Visible; Default = Hidden
Spot Soundings allows you to display or hide spot soundings, which are depth
measurements shown on the chart.
NOTE: Spot Soundings are only available with optional-purchase SD memory
cards.
587ci HD: Map Borders, shown with Custom Chart Layers
Map
Borders
Restricted
Area
Bridge
(wavy red
lines)
Navaids
Other POI
(Points of
Interest)
Roads
Coastline
Chart Menu Tab