Chart correction N11/20 — chart 37222

37222 15Ed. 5/12/18 LAST NM N9/20 N11/20 Substitute Foul ground symbol [K31.1] for depth 12.2 meters 53°31.45′N 6°45.72′E Add Foul ground symbol [K31.1] 53°33.00′N 6°41.78′E (5(90)20 Hamburg)

Source: NGA U.S. Notice to Mariners · edition: 15Ed. 5/12/18

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