Chart correction 07/23 — chart 18421

18421 53Ed. 03/01/19 LAST NM 06/23 07/23 Add Depth 0 fathom 3 feet 49°01′05″N 123°10′32″W Depth 0 fathom 1 foot 49°00′59″N 123°10′19″W Rock which covers and uncovers with drying height 6 feet [K11] 49°00′52″N 123°10′15″W and extend depth contour (1-fathom) SW to enclose above depths (2) and rock Danger circle "Subm buoy (cov 93 fms)" [K1] 48°44′01″N 123°08′46″W (10, 12/22 Ottawa)

Source: NGA U.S. Notice to Mariners · edition: 53Ed. 03/01/19

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