Chart correction 1564 — chart 4923
Chart 4923 [ previous update 1122/23 ] NAD27 DATUM Insert legend, Tuzo Wilson Seamounts, centred on: 51° 27´·6N., 130° 59´·2W.
Source: UKHO Admiralty Notices to Mariners
Reference information — always verify against official Notices to Mariners before navigation.