Chart correction N23/24 — chart 51081

51081  11Ed.  11/12/16  LAST  NM  N10/23  N23/24 Substitute Depth 9 meters enclosed by depth contour (20-meter) for depth 22 meters   37°50.7′N  25°24.0′W (4(176)24 Lisboa)

Source: NGA U.S. Notice to Mariners · edition: 11Ed. 11/12/16

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