Chart correction 2123 — chart 2456

Chart 2456 [ previous update 2100/25 ] NAD83 DATUM Insert GfFl.Y.4s ´SRW01´ 40° 59´·79N., 70° 51´·44W. Delete GfFl.Y.20s 'REVSP4' 41° 06´·06N., 71° 00´·76W.

Source: UKHO Admiralty Notices to Mariners

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