Chart correction 2853 — chart 2580
Chart 2580 [ previous update 1922/25 ] NAD83 DATUM Insert Gf Fl.Y.6s 'EXRX' 40° 53´·26N., 73° 43´·40W. Gf Fl.Y.6s 'MID4' 40° 55´·41N., 73° 39´·30W. Wk27/25 II 2.56
Source: UKHO Admiralty Notices to Mariners
Reference information — always verify against official Notices to Mariners before navigation.