Chart correction 18/22 — chart 18421
★18421 53Ed. 03/01/19 LAST NM 02/22 18/22 Relocate Buoy "16" from 48°38′28″N 122°42′53″W to 48°38′30″N 122°42′46″W (13/22 CG13)
Source: NGA U.S. Notice to Mariners · edition: 53Ed. 03/01/19
Reference information — always verify against official Notices to Mariners before navigation.