Chart correction 1478* — chart 4020

Chart 4020 (INT 20) [ previous update 836/25 ] WGS84 DATUM Insert 1000m contour, joining: (a) 56° 08´·5S., 27° 44´·9W. 56° 05´·4S., 27° 54´·6W. (b) 56° 06´·7S., 28° 05´·3W. and (c) 55° 46´·8S., 28° 02´·9W. 55° 48´·5S., 27° 54´·1W. (d) 55° 46´·7S., 27° 45´·5W. Delete former 1000m contour, joining: (b) above 55° 55´·7S., 27° 56´·5W. (c) above and (d) above 55° 55´·0S., 27° 50´·3W. (a) above Insert depth, 270 (e) 55° 55´·6S., 27° 42´·3W. Delete depth, 424, close S of: (e) above

Source: UKHO Admiralty Notices to Mariners

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