Chart correction N12/21 — chart 22343

22343 2Ed. 4/23/11 LAST NM N11/21 N12/21 Delete Depth 27 meters 41°32′54″S 73°00′15″W Change Light of beacon to Fl(2) G 6s 6m 3M 41°39′39″S 73°02′27″W Add Depth 8.6 meters 41°32′54″S 73°01′40″W and extend depth contour (10-meter) and blue tint E to enclose Depth 19.1 meters 41°32′57″S 73°00′18″W and extend depth contour (20-meter) NW to enclose Pilot station symbol [T1.1] 41°31′48″S 73°01′00″W (6(49)18, 1(1)20 Valparaiso; 10(1174)20 Taunton)

Source: NGA U.S. Notice to Mariners · edition: 2Ed. 4/23/11

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