Chart correction N21/20 — chart 62276
62276 4Ed. 7/19/14 LAST NM N19/20 N21/20 Add Buoy “SA-4” Y, spar, Fl Y [Q130.6] 16°51′46.0″N 42°29′02.5″E Depth 16.2 meters enclosed by depth contour (20-meter) centered 16°50′22.2″N 42°27′50.4″E Dangerous wreck [K28] 16°43′06.0″N 42°32′19.2″E (UKHO ARCS 15-0, 16-0)
Source: NGA U.S. Notice to Mariners · edition: 4Ed. 7/19/14
Reference information — always verify against official Notices to Mariners before navigation.