Chart correction 26/22 — chart 18471
★18471 11Ed. 12/01/07 LAST NM 12/22 26/22 Delete Racon from buoy "SA" 48°11′27.0″N 122°49′48.0″W Substitute V-AIS, "X" topmark [S18.6] for V-AIS, cone topmark 48°06′47.0″N 122°39′40.0″W (18, 21/22 CG13)
Source: NGA U.S. Notice to Mariners · edition: 11Ed. 12/01/07
Reference information — always verify against official Notices to Mariners before navigation.