Chart correction N21/23 — chart 24052
24052 17Ed. 04/30/11 LAST NM N18/23 N21/23 Delete Buoy 34°36′43″S 58°14′03″W Legend "(PA)" from stranded wreck 34°40′05″S 57°50′25″W Dangerous wreck and buoy in vicinity 34°32′15″S 58°21′19″W Dangerous wreck and buoy in vicinity 34°29′35″S 58°27′18″W (See N08, N12/23) Add Buoy "Km 12.3" R, pillar, cone topmark, Fl(3) R 12s 34°36′43″S 58°13′50″W (5(69, 70, 72, 73)23 Buenos Aires) NM 21/23 SECTION I I - 1.2
Source: NGA U.S. Notice to Mariners · edition: 17Ed. 04/30/11
Reference information — always verify against official Notices to Mariners before navigation.