Chart correction N31/20 — chart 17454

17454 1Ed. 5/20/88 LAST NM N14/19 N31/20 Add Depth 22 fathoms ODAS [L25] 51°42.7′N 128°14.1′W (2/20 Ottawa)

Source: NGA U.S. Notice to Mariners · edition: 1Ed. 5/20/88

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