INT 1 · K 25
Wreck with masts visible
DangersCore
Mast marks show that only masts or a funnel remain visible at chart datum.
What it means
Mast or funnel marks identify a wreck whose masts or similar projections are visible at chart datum while the hull remains submerged.
Why it matters
The visible projections mark the location, not the wreck's full extent. Allow for submerged hull, rigging, and debris.