물때 타이드
조수 관측소
Brunswick, Androscoggin River
Cundy Harbor, New Meadows River
Doyle Point
Falmouth Foreside
Great Chebeague Island
Howard Point, New Meadows River
Long Island
Pine Point
Portland Head Light
Prince Point
South Freeport
South Harpswell, Potts Harbor
Vaill Island
Wilson Cove, Middle Bay
해류 관측소
Chandler Cove, S. Ent
Hussey Sound, Between Long and Peaks Island
Hussey Sound, Cow Island
Littlejohn Island, South of Town Ledge
Long Island, Mariner Ledge
Portland Harbor Entrance
Seal Cove, Cape Elizabeth