Chart correction 20/24 — chart 18502
★18502 88Ed. 02/01/17 LAST NM 03/24 20/24 Relocate Buoy "17" from 46°55′17″N 124°04′15″W to 46°55′17″N 124°04′11″W Buoy "14" from 46°55′14″N 124°05′42″W to 46°55′13″N 124°05′54″W (8, 11/24 CG13)
Source: NGA U.S. Notice to Mariners · edition: 88Ed. 02/01/17
Reference information — always verify against official Notices to Mariners before navigation.