Chart correction 4770 — chart 2849

Chart 2849 (Panel A) [ previous update 2423/22 ] NAD83 DATUM Insert the accompanying note, AUTOMATIC IDENTIFICATION SYSTEMS, centred on: 46° 02´·09N., 122° 46´·33W.

Source: UKHO Admiralty Notices to Mariners

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