Chart correction 3218 — chart 4919
Chart 4919 [ previous update 5820/25 ] NAD83 DATUM Insert EfFl(5)Y.20s 'A' 47° 46´·39N., 124° 40´·04W. EfFl(5)Y.20s 'B' 47° 43´·45N., 124° 42´·14W.
Source: UKHO Admiralty Notices to Mariners
Reference information — always verify against official Notices to Mariners before navigation.