Chart correction N7/21 — chart 37230

37230 15Ed. 1/19/13 LAST NM N51/20 N7/21 (Plan A) Add Danger circle “Obstn” [K40] 53°34′02.8″N 9°42′12.5″E (51(1660)20 Hamburg)

Source: NGA U.S. Notice to Mariners · edition: 15Ed. 1/19/13

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