Chart correction 322 — chart 1227
Chart 1227 [ previous update 5065/25 ] NAD83 DATUM Insert GfFl.Y.4s 'DMON' 42° 28´·00N., 70° 41´·01W. Delete former GfFl.Y.4s 'DMON' 42° 31´·60N., 70° 32´·91W.
Source: UKHO Admiralty Notices to Mariners
Reference information — always verify against official Notices to Mariners before navigation.