Chart correction 3634 — chart 2456
Chart 2456 [ previous update 2906/23 ] NAD83 DATUM Insert GfFl.Y.20s ’B’ 41° 01´·61N., 70° 31´·55W. GfFl.Y.20s ’C’ 41° 01´·66N., 70° 25´·00W. Wk41/23 2.42 II
Source: UKHO Admiralty Notices to Mariners
Reference information — always verify against official Notices to Mariners before navigation.