Chart correction N37/20 — chart 51344
51344 3Ed. 5/21/16 LAST NM N31/17 N37/20 (Plan) Change Shape of buoy “C” to spar 28°40′14.3″N 17°46′02.1″W Shape of buoy “A” to spar 28°40′00.9″N 17°45′55.2″W (30(241)20 Cadiz)
Source: NGA U.S. Notice to Mariners · edition: 3Ed. 5/21/16
Reference information — always verify against official Notices to Mariners before navigation.