Chart correction 15/21 — chart 55100

55100 8Ed. 1/23/99 LAST NM 12/21 15/21 Add “Spoil Ground” area [N62.1] bound by dashed line joining 41°46.2′N 28°44.6′E 41°38.8′N 28°53.6′E 41°36.9′N 28°50.9′E 41°43.9′N 28°41.4′E and delete all hydrography within above area (17(56)20 Istanbul)

Source: NGA U.S. Notice to Mariners · edition: 8Ed. 1/23/99

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