C-MAP NA-C230 Gulf Of St. Lawrence

The C-MAP NA-C230 Gulf Of St. Lawrence is a precision electronic chart card built for serious boaters and commercial operators navigating Canada's most challenging waters. This cartography module delivers detailed bathymetric and navigational data essential for safe passage through the Gulf of St. Lawrence, a region where tidal currents, shallow shoals, and complex channels demand accurate real-time positioning. Whether you're running a fishing charter, lobster boat, or recreational cruiser through Canadian Maritime waters, this chart card transforms your GPS chartplotter into a reliable navigation suite.

C-MAP electronic charts are engineered with high-resolution bathymetry, clearly marked hazard zones, and regularly updated navigational references that reflect actual bottom conditions and coastal infrastructure. The NA-C230 format integrates seamlessly with compatible C-MAP enabled chartplotters, displaying detailed contours, wrecks, obstructions, and waypoint data across the full Gulf region. The lightweight card format—weighing just 0.1 lbs—ensures quick installation with zero performance impact on your vessel's electronics, while the proprietary C-MAP encoding guarantees data integrity and precision navigation across tide-influenced and rocky terrain.

Commercial fishermen, yacht captains, and weekend boaters operating in St. Lawrence waters rely on this chart card for seasonal navigation, fish-finding applications, and safe transit through narrow channels and archipelago passages. The card is fully compatible with all C-MAP-enabled Garmin, Raymarine, and marine-grade GPS units that accept the NA-C230 format, making it an essential upgrade for any vessel already equipped with compatible electronics. Installation requires only direct card insertion into your chartplotter's card slot—no software updates or recalibration needed.