Chart correction N37/21 — chart 37121
37121 12Ed. 8/6/11 LAST NM N30/21 N37/21 Add Buoy “CPOD” Y, pillar, “X” topmark, Fl(5) Y 20s [Q130.6] 51°00′09″N 1°52′47″E (31(35)20 Brest)
Source: NGA U.S. Notice to Mariners · edition: 12Ed. 8/6/11
Reference information — always verify against official Notices to Mariners before navigation.