Chart correction 1737 — chart 3990

Chart 3990 [ previous update 1460/24 ] WGS84 DATUM Insert G;fMo(O)Y.12s No 1 (a) 20° 55´·4N., 108° 50´·1E. radar beacon, Racon(Q), at light-buoy (a) above

Source: UKHO Admiralty Notices to Mariners

Reference information — always verify against official Notices to Mariners before navigation.