Chart correction N31/20 — chart 23142

23142 11Ed. 6/28/14 LAST NM N33/17 N31/20 Substitute Foul ground symbol [K31.1] for buoy 37°56′18″S 57°28′18″W Add Foul ground symbol [K31.1] 37°59′48″S 57°30′00″W Foul ground symbol [K31.1] 37°59′42″S 57°30′22″W Dangerous wreck [K28] 38°03′25″S 57°30′44″W (6(77)16, 5(72), 9(136)18, 5(49, 50)20 Buenos Aires)

Source: NGA U.S. Notice to Mariners · edition: 11Ed. 6/28/14

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