2021-11-292021-11-291886-01-012013-04-05http://hdl.handle.net/20.500.13013/1233The soundings are expressed in feet and refer to the mean low water. Inset drawing: chart of mean low water thalwegs from gorge to ocean. "To accompany annual report for the year ending June 30, 1886." Published by The American Graphic Co., New York, NY.Entrance of Newburyport Harbor, Mass.: Plan Showing Condition of ImprovementimageG 3762 .N58 1886 .U55Harbors – Massachusetts – Newburyport – MapsNewburyport (Mass.) – MapsCoastalMassachusettsEssex County