Chart correction 1239 — chart 1720
Chart 1720 [ previous update 276/26 ] CGCS 2000 DATUM Delete symbol, Virtual aid to navigation, special topmark, V-AIS 24° 11´·50N., 118° 21´·56E.
Source: UKHO Admiralty Notices to Mariners
Reference information — always verify against official Notices to Mariners before navigation.