Please note: Coverage is broken down into regions, and a region must be unlocked prior to use. With the purchase of MapSource BlueChart CD ROM, customers will have access to one region area of their choice. The region must be unlocked, which can be done through Garmin via our unlock pages or by phone.


When using a locked MapSource product, the real-time track plotting function will work only with a valid unlock code for the GPS unit being used.


BlueChart cartography is GARMIN's exclusive marine cartography. It compliments GARMIN's new line of handheld mapping products and marine chartplotters. This line of cartography products is designed to provide interactive viewing of detailed nautical chart data, thereby providing navigators with innovative object-oriented cartography. These detailed electronic nautical charts look just like paper charts when displayed on your GARMIN chartplotter. Compatible products include GPSMAP 176, GPSMAP 176C, GPSMAP 76, GPSMAP 162, GPSMAP 168 Sounder, GPSMAP 182, GPSMAP 188 Sounder, GPSMAP 232, GPSMAP 238 Sounder, GPSMAP 2006, and the GPSMAP 2010. The GPS V, eTrex Legend and eTrex Vista also offer limited compatibility.