Chart correction 4997 — chart 4950
Chart 4950 [ previous update 278/25 ] NAD83 DATUM Insert PlFl (5) Y 20s ODAS/SADO (priv) 48° 16´·28N., 123° 35´·31W.
Source: UKHO Admiralty Notices to Mariners
Reference information — always verify against official Notices to Mariners before navigation.