Chart correction 50/23 — chart 18465
18465 39Ed. 10/01/11 LAST NM 40/23 50/23 Delete Depth 30 fathoms Obstn 48°24′04″N 123°24′32″W (11/23 Ottawa)
Source: NGA U.S. Notice to Mariners · edition: 39Ed. 10/01/11
Reference information — always verify against official Notices to Mariners before navigation.