Chart correction 3317 — chart 3881
Chart 3881 [ previous update 2641/23 ] WGS84 DATUM Insert the accompanying block, centred on: 20° 45´·6N., 106° 51´·7E. depth, 113 (a) 20° 47´·98N., 106° 54´·51E. Delete depth, 77, and associated 10m contour, close NW of: (a) above depth, 85, and associated 10m contour 20° 48´·07N., 106° 54´·48E.
Source: UKHO Admiralty Notices to Mariners
Reference information — always verify against official Notices to Mariners before navigation.