Chart correction 4461 — chart 3990
Chart 3990 [ previous update 3874/26 ] WGS84 DATUM Insert symbol, Virtual aid to navigation, special topmark, V-AIS 21° 08´·2N., 109° 03´·6E. Wk39/26 II 2.35
Source: UKHO Admiralty Notices to Mariners
Reference information — always verify against official Notices to Mariners before navigation.