Chart correction 1564 — chart 4922

Chart 4922 [ previous update 1122/23 ] NAD27 DATUM Insert the accompanying block, centred on: 48° 38´·9N., 126° 56´·9W. legend, Endeavor Seamount, centred on: 48° 17´·6N., 129° 03´·3W. Pl Fl(4) Y 20s ODAS/SADO 46419 (a) 48° 49´·0N., 129° 36´·7W. Delete Gl Fl(4)Y 20s ODAS/SADO 46419, close SE of: (a) above Insert legend, Seminole Seamount, centred on: 49° 46´·5N., 129° 40´·9W. Amend legend to, Heck Seamount Chain, centred on: 48° 24´·6N., 129° 39´·5W. Wk18/23 II 2.26

Source: UKHO Admiralty Notices to Mariners

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