Chart correction 31/23 — chart 18474

★18474  11Ed.  12/01/15  LAST  NM  53/22  31/23 Delete "Fish pens" area and lights (2) in vicinity   47°34′16″N  122°32′28″W Add Beacon "DB ROCK" WOr with legend "(Priv)" PA   47°30′23″N  122°27′27″W (21, 24/23 CG13)

Source: NGA U.S. Notice to Mariners · edition: 11Ed. 12/01/15

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