Chart correction 29/23 — chart 18531

★18531  24Ed.  12/01/17  LAST  NM  15/23  29/23 (Upper Panel) Change Light to "B" Fl Y 4s 30ft 4M   45°32′56.1″N  122°20′16.3″W (See 15/23) (16/23 CG13) SECTION I NM 29/23 I - 1.3

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

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