Chart correction 33/20 — chart 54151
54151 1Ed. 6/20/92 LAST NM 30/20 33/20 Add Spoil ground symbol [N62.1] 40°32.1′N 26°00.4′E Submarine cable [L30.1] joining 37°31.6′N 25°13.0′E 37°30.6′N 25°13.0′E 37°25.1′N 25°18.1′E (27(79)20 Istanbul; 29(3459)20 Taunton)
Source: NGA U.S. Notice to Mariners · edition: 1Ed. 6/20/92
Reference information — always verify against official Notices to Mariners before navigation.