Chart correction 47/23 — chart 57220
57220 4Ed. 11/23/85 LAST NM 20/23 47/23 Add Depth 8 fathoms 3 feet Wk [K26] 4°45′25″S 11°47′54″E Depth 7 fathoms 1 foot Obstn [K41] 4°46′07″S 11°48′02″E (42(171)23 Brest)
Source: NGA U.S. Notice to Mariners · edition: 4Ed. 11/23/85
Reference information — always verify against official Notices to Mariners before navigation.