Chart correction 52/21 — chart 18434
★18434 7Ed. 04/01/08 LAST NM 44/19 52/21 Add Buoy "A" W Or, can, with legend "Priv" 48°33′30.0″N 122°53′31.8″W Buoy "B" W Or, can, with legend "Priv" 48°33′28.1″N 122°53′37.0″W Buoy "C" W Or, can, with legend "Priv" 48°33′28.2″N 122°53′41.5″W (41/21 CG13) NM 52/21 SECTION I I-1.4
Source: NGA U.S. Notice to Mariners · edition: 7Ed. 04/01/08
Reference information — always verify against official Notices to Mariners before navigation.