Chart correction 4777 — chart 4013
Chart 4013 (INT 13) [ previous update New Edition 31/07/2025 ] WGS84 DATUM Insert + Obstn PA Rep (2026) (a) 42° 45´·9N., 66° 21´·8W. Delete depth, 29, close NE of: (a) above
Source: UKHO Admiralty Notices to Mariners
Reference information — always verify against official Notices to Mariners before navigation.