Chart correction 1077 — chart 1728
Chart 1728 [ previous update 5308/25 ] CGCS 2000 DATUM Insert symbol, Virtual aid to navigation, isolated danger topmark, V- AIS 21° 21´·10N., 109° 08´·40E.
Source: UKHO Admiralty Notices to Mariners
Reference information — always verify against official Notices to Mariners before navigation.