Chart correction 09/24 — chart 18447
★18447 30Ed. 09/01/12 LAST NM 51/23 09/24 (Side B) Add Dangerous submerged rock [K13] 47°31′24.9″N 122°15′34.5″W (NOS)
Source: NGA U.S. Notice to Mariners · edition: 30Ed. 09/01/12
Reference information — always verify against official Notices to Mariners before navigation.