Chart correction 4137 — chart 2976
Chart 2976 (Panel, Río Guadalquivir Bonanza to Salina de Santa Teresa) [ previous update 3489/22 ] WGS84 DATUM Insert Automatic Identification System, AIS, at light 36° 48´·393N., 6° 20´·299W. 36° 48´·134N., 6° 20´·286W.
Source: UKHO Admiralty Notices to Mariners
Reference information — always verify against official Notices to Mariners before navigation.