Chart correction 52/22 — chart 18450

★18450 20Ed. 01/01/17 LAST NM 26/22 52/22 Add Rock which covers and uncovers with drying height 4 feet [K11] 47°35′03.7″N 122°21′43.3″W (NOS)

Source: NGA U.S. Notice to Mariners · edition: 20Ed. 01/01/17

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