The Humminbird LakeMaster map cards boasts hundreds of lakes and popular water bodies in high definition. New map card versions include improved HD detail and more accurate contours. The LakeMaster Chart map cards are i-Pilot Link compatible. Map card covers Connecticut, Massachusetts, Maine, New Hampshire, New Jersey, New York, Pennsylvania, Rhode Island, and Vermont. Includes over 1500 lakes, ponds, and over 80 High Definition surveyed lakes, plus over 30 Lakemaster High Defninition surveyed lakes.