Long, Block Island Sound & Martha’s Vineyard for RaymarineThis CMOR Card covers 2000 square miles of continuous, feature-rich bottom in Long, Block, Rhode Island Sound and Martha’s Vineyard. There are hundreds of shipwrecks, thousands of uncharted rocks, and countless ledges and mounds that hold the largest fish! The depths range from 1’ to 385’ in the deepest hole in the sound. The coverage starts from Norwalk, CT on the NW corner to Eatons Neck on the SW corner and extends through the sound to east of Block Island. The Long / Block Island Sound / Martha’s Vineyard CMOR card is the most complex and detailed chart ever created! CMOR Mapping bathymetry arms you with more and better data than anybody else on the water. NOAA Charts 12353, 12363, 13205, and 13218 are included in the background. All CMOR Cards come on Micro SD cards with a standard SD adapter included. CMOR Compatible Devices: RaymarineCMOR cards are compatible with all units capable of running the Lighthouse II and Lighthouse 3 interfaces. In order to support CMOR Mapping, units must have at least v17 software installed. Units include: Axiom SeriesAxiom ProHydbrid TouchaSeriescSerieseSerieseS SeriesgS SeriesDragonfly Series