Chart correction N31/23 — chart 51163
51163 5Ed. 12/03/16 LAST NM N18/23 N31/23 Add Anchorage symbol [N10] with legend "May-Oct (buoyed)" 36°46′59.5″N 6°22′12.4″W (22(201)23 Cadiz)
Source: NGA U.S. Notice to Mariners · edition: 5Ed. 12/03/16
Reference information — always verify against official Notices to Mariners before navigation.