Chart correction 1712 — chart 4255

Chart 4255 [ previous update 2422/19 ] UNDETERMINED DATUM Insert depth, 145, PA, enclosed by 20m contour 43° 26´·7S., 74° 05´·0W.

Source: UKHO Admiralty Notices to Mariners

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