Chart correction 15/23 — chart 18531

★18531 24Ed. 12/01/17 LAST NM 52/22 15/23 (Upper Panel) Delete Rear range light and range line between 45°33′08.1″N 122°20′34.9″W 45°32′38.8″N 122°17′13.9″W Rear range light and range line between 45°32′56.2″N 122°20′16.0″W 45°34′09.4″N 122°21′06.5″W Front range light 45°33′06.5″N 122°20′23.1″W Add Light "A" Fl Y 2.5s 39ft 4M 45°33′06.5″N 122°20′23.4″W Light "C" Fl Y 6s 25ft 4M 45°33′08.1″N 122°20′35.1″W Light Iso R 6s 59ft 45°32′56.1″N 122°20′16.3″W (6/23 CG13)

Source: NGA U.S. Notice to Mariners · edition: 24Ed. 12/01/17

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