C-Map Max Chart EN-M610: Lake Ladoga NOAA - Alaska Coast or if the vessel is

or if the vessel is a fishing trawler or super tanker

NOAA Nautical Chart 16123: Point Hope to Cape Dyer is a standard navigation chart

Edition #: 46

the second triangle acts as an extension

C-Map Max Chart EN-M610: Lake Ladoga NOAA - Alaska Coast or if the vessel isOverview Overview C MAP MAX electronic charts have been a worldwide standard for years, providing cruisers, sailors and fishermen with the accurate, up to date chart data they need to enjoy each day on the water. Still a leading choice of navigators and chartplotter manufacturers around the globe. Updated twice annually to provide all the latest detail and information Compatible with dozens of chartplotters from top manufacturers Extensive coverage of