Chart correction N31/21 — chart 17440

17440 2Ed. 1/13/17 LAST NM N29/21 N31/21 Delete Depth 10.1 meters 54°06′38.7″N 130°26′15.4″W Depth 12.5 meters 54°06′02.8″N 130°25′51.7″W Substitute Depth 3.4 meters for 4 meters 54°06′01.9″N 130°26′05.8″W Depth 3 meters for depth 7.9 meters 54°06′19.0″N 130°25′02.3″W and extend depth contour (5-meter) and blue tint NE to enclose Depth 4.9 meters for depth 7 meters 54°06′05.1″N 130°24′44.2″W and extend depth contour (5-meter) E to enclose Add Depth 38 meters ODAS [L25] 54°12′00.0″N 130°38′00.0″W Depth 4.4 meters 54°06′40.2″N 130°26′33.3″W and extend depth contour (5-meter) and blue tint NNE to enclose Depth 2.7 meters 54°06′42.9″N 130°26′28.2″W and extend depth contour (5-meter) and blue tint W to enclose Depth 1.9 meters 54°06′36.6″N 130°26′14.0″W and extend depth contour (2-meter) and blue tint NE to enclose Depth 6.4 meters 54°06′00.9″N 130°25′51.7″W and extend depth contour (10-meter) and blue tint N to enclose Depth 4.1 meters 54°06′25.6″N 130°25′35.6″W and extend depth contour (5-meter) and blue tint N to enclose Depth 4.9 meters, blue tint and enclosing depth contour (5-meter) centered 54°05′42.3″N 130°23′53.8″W (10/18, 3/20 Ottawa)

Source: NGA U.S. Notice to Mariners · edition: 2Ed. 1/13/17

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