Chart correction 4934 — chart 2731

Chart 2731 [ previous update 137/23 ] NAD83 DATUM Insert the accompanying note, AUTOMATIC IDENTIFICATION SYSTEMS, centred on: 41° 41´·83N., 71° 22´·69W.

Source: UKHO Admiralty Notices to Mariners

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