Chart correction N7/21 — chart 62515
62515 3Ed. 7/16/16 LAST NM N51/20 N7/21 Add Buoy “Z3” Y, pillar, Oc Y [Q130.6] 28°44′30.0″N 48°28′00.0″E Buoy “Z4” Y, pillar, Oc Y [Q130.6] 28°45′00.0″N 48°31′00.0″E (3(261)21 Taunton)
Source: NGA U.S. Notice to Mariners · edition: 3Ed. 7/16/16
Reference information — always verify against official Notices to Mariners before navigation.