Navionics+ NAUS004R - Canada & Alaska

The Navionics+ NAUS004R Canada & Alaska marine cartography card delivers the industry-leading electronic navigation solution for boaters, anglers, and mariners operating in North American waters. As the world's most trusted marine mapping system, Navionics+ provides integrated detail-rich chart coverage across coastal waters, inland lakes, rivers, and passages throughout Canada and Alaska—combining advanced bathymetry data, real-time mapping intelligence, and sophisticated navigation tools on any compatible Garmin, Humminbird, or Lowrance chartplotter.

This cartography card features SonarChart™ 1-foot (0.5 meter) HD bathymetry mapping derived from thousands of hours of sonar data collection, enabling precise bottom contour reading from surface to 6,000 feet. Dock-to-dock route guidance automatically calculates navigable paths between fishing spots, harbors, and anchorages, while User PointsPOI database integration allows anglers to mark and share proven fishing locations, tackle shops, fuel docks, and service facilities. The card's Navionics Plus functionality continuously updates with user-contributed fishing and depth data, keeping your charts current between software updates.

Weekend fishermen benefit from straightforward waypoint marking and hazard alerting across shallow inland lakes and coastal bays, while offshore anglers depend on SonarChart bathymetry for locating seamounts, ridges, and deep-water structure far from shore. The Navionics+ NAUS004R card serves both freshwater and saltwater environments, making it equally valuable for salmon runs in Alaska's Inside Passage, walleye fishing on prairie reservoirs, or offshore saltwater operations. Users operating across the Canada-Alaska region—from British Columbia's Gulf Islands to the Bering Strait—rely on this single cartography solution to eliminate the need for multiple regional charts.

Navionics+ cartography represents the standard for electronic chart systems in modern marine navigation, recognized across professional fishing guides, commercial mariners, and recreational boaters as the reference dataset for North American waters. The NAUS004R card's microSD format ensures broad compatibility across current and recent-generation charterploter platforms, and the compact 0.3 lb format fits any navigation station without space constraints.