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How to improve your navigational chart detail with C-MAP Genesis


Back in 2018, C-MAP launched the Genesis Layer functionality for MAX-N+ inland water charts. This allowed anglers to overlay crowdsourced bathymetry from Social Map onto a MAX-N+ Chart.

C-MAP Genesis is a cloud-based service that empowers anglers to create custom, high-definition contour maps from sonar data recorded with a compatible Sonar/GPS unit from their own boats.

While a navigational chart is used for safe course plotting; taking the user from A-to-B, C-MAP Genesis provides the detailed bottom structure of a body of water - this data helps you identify those elusive fish holding spots.

The Genesis Layer is updated twice per year, where all the inland data currently available on Social Map is ingested into the C-MAP MAX-N+ charts. When the public update is completed, log into your www.gofreemarine account download the latest version

Here is how to activate the Genesis Layer on your Lowrance or Simrad device.


The comparison below shows the map before-and-after Genesis Layer is activated. The right hand Genesis Layer image has a whole new level of contour detail pulled from the Social Map data!


Remember that you can contribute to the future mapping of the worlds waterways by opening a Genesis account and sharing your fishing and navigational data.

For more details on custom mapping options and MAX-N+ charts with the Genesis Layer, visit: