Chart correction 41/23 — chart 18441
★18441 49Ed. 04/01/20 LAST NM 40/23 41/23 Change Light to "4" Fl R 4s 15ft 6M 47°37′19″N 122°29′51″W and delete Ra Ref (33/23 CG13; USCG LL)
Source: NGA U.S. Notice to Mariners · edition: 49Ed. 04/01/20
Reference information — always verify against official Notices to Mariners before navigation.