Chart correction 1806 — chart 3990
Chart 3990 [ previous update 1737/24 ] WGS84 DATUM Insert ´Rep (2023) 19° 43´·6N., 109° 02´·5E. 19° 58´·3N., 108° 36´·3E.
Source: UKHO Admiralty Notices to Mariners
Reference information — always verify against official Notices to Mariners before navigation.