Chart correction N31/20 — chart 17488

17488 2Ed. 11/11/16 LAST NM N49/17 N31/20 Add Depth 62 fathoms Wk [K26] 51°22′04″N 127°52′46″W (11/18 Ottawa) ★18531 24Ed. 12/17 LAST NM 18/20 31/20 (Lower Panel) Delete V-AIS 45°37′11″N 121°59′31″W (26/20 CG13)

Source: NGA U.S. Notice to Mariners · edition: 2Ed. 11/11/16

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