Chart correction 04/24 — chart 18421
★18421 53Ed. 03/01/19 LAST NM 01/24 04/24 Delete RACON from buoy "CA" 48°45′18″N 122°46′31″W Topmark from buoy "DR" 48°32′57″N 122°59′22″W Relocate Buoy "1" from 48°34′45″N 123°10′53″W to 48°34′45″N 123°10′47″W (51/23 CG13)
Source: NGA U.S. Notice to Mariners · edition: 53Ed. 03/01/19
Reference information — always verify against official Notices to Mariners before navigation.