Lowrance Electronic Charts

Lowrance Electronic Charts: Precision Cartography for Anglers and Mariners

When it comes to knowing what lies beneath the surface, the quality of your electronic chart can mean the difference between a productive day on the water and a frustrating one. Lowrance has built its reputation around pairing industry-leading fishfinders and chartplotters with equally capable electronic charts — and their C-MAP-powered cartography lineup is a direct reflection of that commitment.

C-MAP DISCOVER: The Foundation for Freshwater and Coastal Navigation

At the core of Lowrance's chart lineup is C-MAP DISCOVER, a versatile option designed for boaters, anglers, and sailors who demand accurate, wide-coverage navigation data. C-MAP DISCOVER delivers full-featured vector charts with high-resolution bathymetry, integrated Genesis social data, subscription-free Easy Routing, and custom depth shading. The embedded version — C-MAP DISCOVER OnBoard is embedded in all HDS PRO and Elite FS displays and bundled as an SD card with select Eagle models — meaning many Lowrance users already have a capable chart solution right out of the box. For lakes specifically, DISCOVER OnBoard offers high-resolution, bathymetric 1-foot contours on 19,000+ U.S. lakes and 9,400+ lakes in Canada.

C-MAP REVEAL: The Premium Fishing and Cruising Chart

For anglers and cruisers who want every possible edge, C-MAP REVEAL steps up the game significantly. REVEAL charts bring the very best of C-MAP, including game-changing Shaded Relief — bringing the world around and beneath you to life in a completely new way. High-resolution bathymetry helps identify shallow areas, drop-offs, ledges, holes, and humps via accurate contour lines down to 1-foot level of detail. The coastal version goes even further, with satellite imagery that gives information about surroundings in unfamiliar places, plus a collection of thousands of photos of marinas, harbors, inlets, and other notable navigational features. Easy Routing helps automatically plot the shortest, safest route based on detailed chart data and personalized vessel information — and it is always subscription-free.

C-MAP Genesis: Community-Powered Contour Mapping

One of the most unique aspects of Lowrance's chart ecosystem is its integration with C-MAP Genesis. C-MAP Genesis charts have revolutionized freshwater fishing — through user-generated data, precise 1-foot contour detail is available for once uncharted water systems. Features such as custom depth shading, vegetation and bottom composition layers, and live mapping help anglers find more fish and navigate new water safely. Social Map is a free, global, online collection of inland and coastal C-MAP Genesis charts generated by the Lowrance, Simrad Yachting, and B&G communities of fishing, cruising, and sailing enthusiasts.

Choosing the Right Lowrance Chart Card

Selecting the right electronic chart depends on where and how you fish or cruise. DISCOVER is the ideal starting point for boaters who need broad inland and coastal coverage with robust navigation features. REVEAL is the upgrade path for anglers who want shaded relief, satellite overlay, and richer structure identification. Full-featured vector charts make navigation easy by providing accurate, up-to-date chart detail derived from official Hydrographic Office information — a critical factor for safe passage in unfamiliar coastal waters. Whichever tier you choose, Lowrance's deep integration with C-MAP means the chart data and the hardware are engineered to work seamlessly together.