Chart correction 1373* — chart 4020

Chart 4020 (INT 20) [ previous update 1724/22 ] WGS84 DATUM Insert depth, 522, and extend 1000m and 2000m contours W to enclose 55° 46´·7S., 28° 47´·5W.

Source: UKHO Admiralty Notices to Mariners

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