Chart correction 2100 — chart 539
Chart 539 [ previous update 1918/24 ] WGS84 DATUM Insert +Obstn 54° 40´·6S., 62° 58´·1W. depth, 31, and extend 100fm contour SW to enclose 51° 55´·0S., 61° 54´·1W.
Source: UKHO Admiralty Notices to Mariners
Reference information — always verify against official Notices to Mariners before navigation.