Chart correction 1774 — chart 343
Chart 343 [ previous update 1607/26 ] CGCS 2000 DATUM Insert depth, 167 (a) 22° 17´·39N., 113° 48´·35E. Delete depth, 176, close NW of: (a) above
Source: UKHO Admiralty Notices to Mariners
Reference information — always verify against official Notices to Mariners before navigation.