Chart correction 3120 — chart 2456
Chart 2456 [ previous update 2769/25 ] NAD83 DATUM Insert GfFl.Y.20s 'REVSP3' 41° 07´·70N., 70° 52´·32W.
Source: UKHO Admiralty Notices to Mariners
Reference information — always verify against official Notices to Mariners before navigation.