If you were sailing in the North Pacific and were interested in the ice and iceberg limits, where could you find this information?

• A. The Pilot Chart
• B. Ice Atlas
• C. Maritime Almanac
• D. Coast Pilot

Answer: (A)

Finding ice and iceberg limits for planning a North Pacific voyage is about knowing which reference provides reliable, region-wide ice information for navigation. The Pilot Chart is built for this purpose, compiling climatological and oceanographic data for a region—including the typical ice edge positions and seasonal ice limits—along with winds and currents. This makes it the best source when you need a broad, planning-focused view of where ice is likely to be encountered on a route.

Ice Atlas is specialized for ice details, but it isn’t the primary navigation tool used for planning whole-ocean passages. Maritime Almanac covers navigational and astronomical data like tides and celestial information rather than ice limits. Coast Pilot concentrates on coastal piloting, harbor approaches, and local coastal hazards, not the large-scale ice boundaries you’d rely on for a North Pacific crossing. So for ice and iceberg limits, the Pilot Chart provides the most directly useful information.