Chart correction 4378 — chart 2890
Chart 2890 [ previous update 4094/24 ] NAD83 DATUM Insert GfFl.Y.20s 'REVSP3' 41° 07´·70N., 70° 52´·32W. GfFl.Y.20s 'REVSP4' 41° 06´·06N., 71° 00´·76W. GfFl.Y.20s 'REVSP1' 41° 14´·69N., 71° 07´·10W. GfFl.Y.20s 'REVSP2' 41° 07´·50N., 71° 15´·16W.
Source: UKHO Admiralty Notices to Mariners
Reference information — always verify against official Notices to Mariners before navigation.