Chart correction N40/21 — chart 51164

51164 19Ed. 9/24/16 LAST NM N35/21 N40/21 Add Buoy “WD Tech” Y, pillar, “X” topmark, Fl(5) Y 20s with legend “ODAS” [Q58] 36°34′34″N 6°16′19″W (35(274)21 Cadiz)

Source: NGA U.S. Notice to Mariners · edition: 19Ed. 9/24/16

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