Chart correction N18/20 — chart 24052

24052 17Ed. 4/30/11 LAST NM N47/19 N18/20 Delete Depth 5 meters 34°36′20″S 58°12′21″W Buoy “Km 58” 34°31′34″S 57°56′05″W Buoy “Km 60.1” 34°30′29″S 57°56′22″W Buoy 34°31′35″S 57°56′12″W Buoy 34°30′29″S 57°56′29″W Change Period of buoy to 10s 34°41′51″S 57°55′48″W Period of buoy to 10s 34°34′03″S 58°18′05″W Add AIS [S17.2] to buoy 34°37′06″S 58°18′25″W Submarine pipeline area [L40.2] bound by purple composite line joining 34°35′39″S 58°14′33″W 34°34′54″S 58°13′50″W 34°34′54″S 58°12′39″W 34°35′39″S 58°13′21″W Buoy BY, pillar, double cone topmark points upward, VQ [Q130.3] 34°34′54″S 58°13′19″W Buoy YB, pillar, double cone topmark points downward, VQ(6) [Q130.3] 34°35′39″S 58°13′58″W Buoy “Km 57.5” Y, pillar, “X” topmark, Fl(3) Y 9s [Q130.6] 34°31′52″S 57°56′00″W Buoy “Km 58.9” Y, pillar, “X” topmark, Fl(3) Y 9s [Q130.6] 34°31′05″S 57°56′08″W Buoy “Km 60.5” Y, pillar “X” topmark, Fl(3) Y 9s [Q130.6] 34°30′16″S 57°56′25″W Add Buoy G, pillar, can topmark, Fl(2) G 6s 34°31′07″S 57°56′18″W Buoy G, pillar, can topmark, Fl(3) G 9s 34°30′17″S 57°56′31″W Buoy G, pillar, can topmark, Fl(4) G 12s 34°31′53″S 57°56′07″W Depth 2.5 meters enclosed by depth contour (3-meter) centered 34°36′31″S 58°12′22″W (10(158)17, 12(195)18, 10(111), 11(121)19 Buenos Aires; 40(5059), 48(6122)19 Taunton)

Source: NGA U.S. Notice to Mariners · edition: 17Ed. 4/30/11

Reference information — always verify against official Notices to Mariners before navigation.