C-Map 4D Chart NA-D061: Great Lakes & St. Lawrence Seaway (Update) content:4D Max This Nickel-plated Compass Chart Weight

This Nickel-plated Compass Chart Weight is a nickel-plated forged brass ring surrounding a working liquid filled compass that is ideal for holding down charts on the boat or for use as an elegant paperweight

in one volume

NOAA Nautical Chart 12363: Long Island Sound Western Part is a standard navigation chart used by commercial and recreational mariners alike

making it a must-have for safety compliance

C-Map 4D Chart NA-D061: Great Lakes & St. Lawrence Seaway (Update) content:4D Max This Nickel-plated Compass Chart WeightWhy Update Your C Map Chart? Why Update Your C Map Chart? It is very important that the latest C Map charts are used when sailing out in the open water for safe navigation purposes. The C Map electronic chart libraries get updated twice a year to coincide with popular boating sessions. Included in the library updates are the latest notice to mariner updates from government hydrographic offices, updates to marina facilities, port services, photos and