C-MAP M-NA-D039 4D microSD US Rivers OH, TN-Tom, Cumberland

The C-MAP M-NA-D039 4D microSD US Rivers OH, TN-Tom, Cumberland is purpose-built for anglers and river cruisers navigating inland waterways across the Ohio and Tennessee river systems. This microSD card format chart delivers detailed bathymetric data and precise navigation information for the Cumberland River, Tennessee River, and Ohio River corridors—critical waterways that demand accurate depth readings and underwater terrain awareness. Whether you're bass fishing, towing, or running commercial routes, this regional cartography card integrates seamlessly with compatible C-MAP enabled chartplotters and fish finders.

The 4D cartography technology layers high-resolution bathymetry, 3D water-column imaging, and dynamic depth contours onto a single card, giving you real-time visual clarity of submerged structure, channel transitions, and navigation hazards. The microSD format ensures broad compatibility with Garmin, Lowrance, and other leading marine electronics platforms, while the compact storage footprint makes swapping regional charts quick and efficient. C-MAP's proprietary sonar integration technology also allows live sonar data overlay when paired with compatible transducers, transforming raw depth returns into actionable underwater maps on your display.

River navigators, tournament anglers, and recreational boaters operating in Ohio, Tennessee, and Kentucky will find this chart card invaluable for safety and catch success. The card's lightweight design (0.18 lbs) travels easily and stores in any tackle bag or electronics kit. Installation requires only a microSD-compatible chartplotter—no downloads, software updates, or subscriptions needed. For multi-river expeditions or seasonal fishing campaigns, this single card covers some of America's most productive and challenging inland waterways.