Osher Map Library

United States. Army. Corps of Engineers. Engineer Office

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Sketch of Portland Harbor including Back Cove, Maine showing projected improvements

Sheet No. II Map of Portion of Penobscot River, Maine between Stearn's Mill and Crosby's Narrows Showing Area under contract to be dredged in front of Stearn's Mill, also The condition of Shoal and the Location of two Jetties for contracting the channel above Crosby's Narrows.

Penobscot River, Maine, between Bangor and Bucksport Map of Frankfort Flats and Vicinity, showing Locations of Borings and Proposed Improvements.

Sheet No. I Penobscot River, Maine. Map of Bangor Harbor, from survey made under the direction of Lieut.-Col., Jared A. Smith, Corps of Engineers, U.S. Army, In accordance with River and Harbor Act dated September 19th, 1890 By A.C. Roth, Assistant Engineer October 1891

Sheet No. III Penobscot River, Maine - Plan of Resurvey of Channel below Winterport, also of Part of River, in the Vicinity of High Head. Made in September 1891, by A.C Roth, Assist. Engnr. under the direction of Lieut. Col. Jared A. Smith, Corps of Engineers, U.S. Army

Chart of a portion of Sandusky Bay, Showing existing Route from Lake to City Docks, and Proposed Route surveyed under Act of Congress approved August 5th 1886.

Map of Scituate Harbor, Massachusetts. Showing the Improvements Proposed for making it a Harbor of Refuge

Winthrop Harbor Mass. Surveyed in accordance with Act of Congress approved August 5, 1886 showing proposed improvements To accompany report of Lt. Col. Geo. L. Gillespie, Crops of Engrs. U.S.A.

Boston Harbor, Mass. Sketch showing Locations of Works for Its Improvement

Manchester Harbor, Mass.