Chart correction 2359 — chart 2640

Chart 2640 (Panel D, Teluk Mekongga) [ previous update 3191/23 ] UNDETERMINED DATUM Insert the accompanying block, centred on: 4° 10´·5S., 121° 30´·5E.

Source: UKHO Admiralty Notices to Mariners

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