Chart correction 31/23 — chart 18440
★18440 31Ed. 04/01/17 LAST NM 07/23 31/23 Delete Lights (2) in vicinity 47°34.3′N 122°32.5′W (24/23 CG13)
Source: NGA U.S. Notice to Mariners · edition: 31Ed. 04/01/17
Reference information — always verify against official Notices to Mariners before navigation.