Chart correction 4977 — chart 4977

Chart 4977 [ previous update 5228/24 ] NAD83 DATUM Replace depth, 5½, enclosed by danger line, Subm buoy, with depth, 4, enclosed by danger line, Subm buoys (a) 56° 51´·6N., 164° 03´·3W. Delete GFl.Y.4s BSPR-2A, close N of: (a) above 36 COLOMBIA - Pacific Ocean Coast - Wreck. Source: Colombian Notice 314/24

Source: UKHO Admiralty Notices to Mariners

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