Portland Harbor (Me.)
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Sketch of Portland Harbor, Maine, Showing the Improvements made in 1866-75, under the direction of Bvt. Brig. General Geo. Thom, Colonel of Engineers.
Creator: United States. Army. Corps of Engineers,
, Thom, George
Publishing Location:Washington D.C.
Region Depicted: Portland Harbor, Maine
· South Portland, Maine
· Cape Elizabeth, Maine
Date Produced: 1880
Date Published: 1880
Map Type: Nautical charts