Chart correction N19/23 — chart 18469
18469 1Ed. 11/22/13 LAST NM N26/22 N19/23 Delete Depth 0.6 meter 48°25′22.6″N 123°23′17.7″W Add Bottom characteristic "R" [J9.1] 48°25′24.0″N 123°23′19.7″W Depth 0.9 meter 48°25′24.2″N 123°23′19.7″W Rock which covers and uncovers with drying height 0.1 meter [K11] 48°25′22.8″N 123°23′17.6″W (2/23 Ottawa)
Source: NGA U.S. Notice to Mariners · edition: 1Ed. 11/22/13
Reference information — always verify against official Notices to Mariners before navigation.