Chart correction N31/20 — chart 44240
44240 9Ed. 11/1/14 LAST NM N20/20 N31/20 Change Legend to “3.0m” 62°46.4′N 21°00.2′E (17(135)20 Helsinki)
Source: NGA U.S. Notice to Mariners · edition: 9Ed. 11/1/14
Reference information — always verify against official Notices to Mariners before navigation.