Chart correction 1899 — chart 4923

Chart 4923 [ previous update 4477/24 ] NAD27 DATUM Insert 22,ODAS/SADO 51° 57´·0N., 130° 27´·9W. 51° 37´·3N., 130° 47´·4W.

Source: UKHO Admiralty Notices to Mariners

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