Chart correction N31/20 — chart 17458

17458 2Ed. 9/23/16 LAST NM N14/20 N31/20 Add Depth 22 fathoms ODAS [L25] 51°42′43″N 128°14′09″W (2/20 Ottawa)

Source: NGA U.S. Notice to Mariners · edition: 2Ed. 9/23/16

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