C-Map Max-N+ Chart NA-Y934: Lake Ontario & Trent Severn Waterway (Update) Parallel Rulers Fits in a pocket or

Fits in a pocket or drawer

and the felt bottom protects the surface it rests on and prevents sliding

Coastguard requirement (46 CFR 160

Cartagena to Cabo de San Antonio including Isla Formentera is a standard nautical chart

C-Map Max-N+ Chart NA-Y934: Lake Ontario & Trent Severn Waterway (Update) Parallel Rulers Fits in a pocket orWhy 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