Chart correction N4/21 — chart 93710
93710 4Ed. 4/27/13 LAST NM N1/21 N4/21 Substitute Depth 1.8 meters Wk [K26] for 1.1 meters Wk 21°01.6′N 110°36.5′E (See N31/20) (48(1698)20 Tianjin) NM 4/21 SECTION I I-1.12
Source: NGA U.S. Notice to Mariners · edition: 4Ed. 4/27/13
Reference information — always verify against official Notices to Mariners before navigation.