Chart correction 4647 — chart 4766

Chart 4766 [ previous update 1963/26 ] NAD83 DATUM Insert depth, 138, and extend 20m contour SE to enclose (a) 48° 21´·9N., 64° 31´·9W. Delete depth, 238, close SE of: (a) above Wk41/26 II 2.41

Source: UKHO Admiralty Notices to Mariners

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