Chart correction N28/21 — chart 17415

17415 1Ed. 10/23/87 LAST NM N4/13 N28/21 Add Depth 4 1/2 fathoms, blue tint and enclosing depth contour (6-fathom) centered 53°45.6′N 133°06.0′W (10/18 Ottawa) 17420 29Ed. 2/13 LAST NM 27/21 28/21 Delete Depth 14 fathoms 54°15.9′N 131°05.8′W Substitute Buoy “CUT” BYB, pillar, double cone topmark bases together, Q(3) W 10s WHIS [Q130.3] for buoy “C25” 54°14.9′N 131°30.8′W (continued on next page) SECTION I NM 28/21 I-1.3 17420 (Continued) Add Rock which covers and uncovers with drying height 0 fathoms 1 foot [K11] 54°12.9′N 131°37.8′W Rock which covers and uncovers with drying height 2 fathoms 4 feet [K11] 54°13.2′N 131°36.5′W Pilot station symbol [T1.4] 54°19.0′N 131°02.5′W Buoy “EF5” G, pillar, Fl G 54°08.2′N 131°05.0′W Buoy “EF2” R, pillar, Fl R 54°02.5′N 130°54.4′W (12/15, 4, 8, 11/17, 9/20 Ottawa)

Source: NGA U.S. Notice to Mariners · edition: 1Ed. 10/23/87

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