Chart correction 3971 — chart 2456
Chart 2456 [ previous update 3909/24 ] NAD83 DATUM Delete GfFl.Y.20s 41° 09´·56N., 70° 38´·32W. 41° 20´·95N., 70° 56´·81W.
Source: UKHO Admiralty Notices to Mariners
Reference information — always verify against official Notices to Mariners before navigation.