Chart correction 20/22 — chart 55170

55170 2Ed. 10/05/96 LAST NM 03/22 20/22 Delete Depth 666 meters 41°05.1′N 39°46.9′E Depth 303 meters 41°09.3′N 39°07.6′E Add “Spoil Ground” area [N62.1] bound by dashed line joining 41°09.4′N 39°07.3′E 41°09.0′N 39°05.6′E 41°08.1′N 39°06.0′E 41°08.4′N 39°07.6′E “Spoil Ground” area [N62.1] bound by dashed line joining 41°05.5′N 39°46.6′E 41°04.5′N 39°45.8′E 41°03.4′N 39°50.0′E 41°04.5′N 39°50.8′E “Spoil Ground” area [N62.1] bound by dashed line joining 41°05.7′N 40°31.4′E 41°06.3′N 40°34.0′E 41°07.2′N 40°33.7′E 41°06.5′N 40°31.1′E "Spoil Ground" area [N62.1] bound by dashed line joining 40°58.9′N 40°07.3′E 40°58.8′N 40°08.8′E 40°58.1′N 40°08.7′E 40°58.1′N 40°07.2′E Entry prohibited area [N2.2] bound by shore and purple composite line joining 41°11.1′N 40°52.6′E 41°11.4′N 40°52.5′E 41°11.4′N 40°52.0′E 41°10.8′N 40°49.6′E 41°10.5′N 40°49.2′E 41°10.1′N 40°49.4′E (20(63)20, 12(41)22 Istanbul)

Source: NGA U.S. Notice to Mariners · edition: 2Ed. 10/05/96

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