43. What does the chart symbol depicted at LAT 40°58.5'N, LONG 72°43.4'W indicate?

The chart symbol at the specified coordinates indicates a wreck where a portion of the hull is visible above the sounding datum. This symbol distinguishes submerged wrecks from those with exposed hull structures, unlike symbols for masts, lightships, or abandoned lighthouses. Understanding the chart datum, which represents the reference level for charted depths, is crucial for interpreting wreck symbols and assessing navigational hazards.