Chart correction 1870 — chart 4790

Chart 4790 (Panel, Sorel-Tracy) [ previous update 5162/25 ] NAD83 DATUM Insert depth, 8 (a) 46° 02´ 37·9"N., 73° 07´ 08·2"W. Delete depth, 84, close SE of: (a) above Insert depth, 56 (b) 46° 02´ 50·9"N., 73° 06´ 58·5"W. Delete depth, 59, close N of: (b) above Insert depth, 54 (c) 46° 02´ 52·8"N., 73° 06´ 53·1"W. Delete depth, 57, close NE of: (c) above

Source: UKHO Admiralty Notices to Mariners

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