Chart correction 46/21 — chart 18430

★18430 9Ed. 07/01/10 LAST NM 05/21 46/21 Add AIS [S17.2] to buoy "C" 48°40′33.7″N 122°42′48.0″W (38/21 CG13)

Source: NGA U.S. Notice to Mariners · edition: 9Ed. 07/01/10

Reference information — always verify against official Notices to Mariners before navigation.