Chart correction 1771 — chart 846
Chart 846 (INT 1229) [ previous update 4304/23 ] WGS84 DATUM Insert J; 58° 35´·99N., 17° 18´·07E. 48 ESTONIA - Depths. Source: Estonian Chart 781
Source: UKHO Admiralty Notices to Mariners
Reference information — always verify against official Notices to Mariners before navigation.