Chart correction N42/23 — chart 44179
44179 3Ed. 05/02/15 LAST NM N34/23 N42/23 Delete Anchoring and diving prohibited area in vicinity 59°07′43″N 18°24′14″E Add Anchoring prohibited symbol [N20] 59°07′25″N 18°24′26″E Anchoring and diving prohibited area [N2.1] bound by shore and purple dashed-line greater arc of a circle, radius 0.05 mile, centered 59°07′43″N 18°24′10″E (981(17731)23 Norrkoping)
Source: NGA U.S. Notice to Mariners · edition: 3Ed. 05/02/15
Reference information — always verify against official Notices to Mariners before navigation.