Chart correction 26/22 — chart 18450

★18450 20Ed. 01/01/17 LAST NM 25/22 26/22 Delete Depth 25 feet 47°35′07.2″N 122°21′42.0″W Note: Depth contour (30-foot) remains Substitute Depth 31 feet for depth 28 feet and enclosing depth contour (30-foot) 47°35′10.0″N 122°21′41.6″W Add Depth 29 feet 47°35′07.6″N 122°21′41.0″W (NOS)

Source: NGA U.S. Notice to Mariners · edition: 20Ed. 01/01/17

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