물때 타이드
조수 관측소
Burton, Quartermaster Hbr. (Inside), Vashon I.
Tahlequah, Neil Pt., Dalco Passage, Vashon I.
해류 관측소
Anderson Point, East of, Colvos Passage
Browns Point, 1.6 miles North of
Dalco Passage
Point Richmond, East of, Colvos Passage
