Chart correction 16/21 — chart 23023

23023 4Ed. 11/1/97 LAST NM 14/21 16/21 Add Depth 16 meters 43°10.0′S 64°42.0′W and extend depth contour (20-meter) S to enclose Depth 17 meters enclosed by depth contour (20-meter) centered 43°11.0′S 64°40.0′W Depth 18 meters 43°11.0′S 64°36.0′W and extend depth contour (20-meter) S to enclose (ARG CH 218)

Source: NGA U.S. Notice to Mariners · edition: 4Ed. 11/1/97

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