**Preview map is LOW RESOLUTION. See gallery below for HD sample images**
- Description: High definition 3D images of the seafloor
- Coverage: Block Island Sound and Rhode Island Sound from Gardiner’s Point to Pollock Rip including Martha’s Vineyard, Buzzards Bay, Narragansett Bay, and Nantucket.
- Works on: Lowrance, Simrad, B&G, mobile devices, and computers.
- Notes: Wrecks, great rock areas, and other areas of interest. Resolution varies depending on the area.