Chart correction 4770 — chart 588

Chart 588 [ previous update 4568/23 ] NAD83 DATUM Insert the accompanying note, AUTOMATIC IDENTIFICATION SYSTEMS, centred on: 37° 44´·59N., 122° 27´·59W.

Source: UKHO Admiralty Notices to Mariners

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