microSD™/SD™ card: VSA009R-g3 Amazon River

Provides exceptional coverage, clarity and detail with coastal charts that feature integrated Garmin and Navionics® data Auto Guidance¹ technology calculates a route using your desired depth and overhead clearance and provides a suggested path to follow. Includes depth range shading for up to 10 depth ranges, enabling you to view your target depth at a glance. Up to 1’ contours provide a more accurate depiction of the bottom structure for improved fishing charts and navigation in swamps, canals and marinas