Chart correction N16/21 — chart 52085
52085 4Ed. 7/20/13 LAST NM N41/20 N16/21 Delete Marine farm area and buoys (4) in vicinity 39°38′41″N 0°10′09″W Add Buoy Y, pillar, “X” topmark, Fl Y 5s [Q130.6] 39°38′39″N 0°10′21″W Buoy Y, pillar, “X” topmark, Fl Y 5s [Q130.6] 39°38′46″N 0°09′50″W Buoy Y, pillar, “X” topmark, Fl Y 5s [Q130.6] 39°38′06″N 0°10′10″W Buoy Y, pillar, “X” topmark, Fl Y 5s [Q130.6] 39°38′13″N 0°09′38″W Marine farm area [K48.1] bound by dashed line joining above buoys (12(77)21 Cadiz)
Source: NGA U.S. Notice to Mariners · edition: 4Ed. 7/20/13
Reference information — always verify against official Notices to Mariners before navigation.