Chart correction N22/23 — chart 14214
14214 3Ed. 05/24/19 LAST NM N20/23 N22/23 Substitute Depth 5.6 meters for depth 6.7 meters 46°39′19.4″N 71°44′59.5″W Add Depth 3.9 meters 46°39′25.8″N 71°44′55.1″W and extend depth contour (5-meter) S to enclose Depth 4.1 meters 46°39′19.8″N 71°44′43.8″W and extend depth contour (5-meter) S to enclose (4/23 Ottawa)
Source: NGA U.S. Notice to Mariners · edition: 3Ed. 05/24/19
Reference information — always verify against official Notices to Mariners before navigation.