With HDS® Gen2 networked to the optional StructureScan® sonar imaging module, you can easily overlay StructureScan® images on top of traditional charts to provide a real-time view into underwater structure and its precise location on the map.

HDS mapping with contour data

StructureScan sonar imaging with left and right sidescan views

HDS contour mapping with StructureMap overlay

View And Create Underwater Charts You can also create StructureMap™ images right on your boat or scan an area to create a detailed map for viewing off the water.

Choose Your Favorite HDS® Gen2 Mapping Option The new StructureMap™ feature works with the Lowrance enhanced basemap, built-in Insight cartography, Insight HD cards, Navionics® world background map, as well as Navionics® Gold, HotMaps® Premium and Platinum+ charts.

TrackBack And Never Miss A Key Hotspot You can also use the TrackBack™ feature on the HDS® Gen2 StructureMap™ overlay to review recorded sonar history, mark waypoints and save the location of important areas – structure, gamefish, baitfish, diving spots -- all without losing valuable sonar readings because HDS® Gen2 keeps recording while you’re marking those favorite locations.

Navionics® 3D chart without StructureMap™ overlay

Navionics® 3D chart with active StructureMap™ overlay

Additional StructureMap™ screenshots from live on-water demonstrations

Four-panel page view showing StructureMap, StructureScan side view, DownScan view, and Broadband Sounder

StructureMap overlay with blue color palette on Navionics 3D chart

StructureMap overlay with red color palette on Navionics 3D chart

StructureMap overlay with green color palette on Navionics 3D chart