Chart correction 642 — chart 4246

Chart 4246 [ previous update 826/21 ] SAD69 DATUM Replace depth, 76, with depth, 42 37° 05´·53S., 73° 30´·99W. Delete .ED and associated legend Ra Cockatrice 37° 04´·86S., 73° 35´·15W. .ED and associated legend Ra Hector 37° 07´·07S., 73° 35´·25W.

Source: UKHO Admiralty Notices to Mariners

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