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Relief shown by hachures. Depths shown by soundings.
Depths shown by soundings.
Oriented with north to the upper right.
Revision of 1946 map by L.S. Phillips.
Entered according to act of Congress, in the year 1850, by Thomas, Cowperthwait & Co., in the clerk's office of the District court of the Eastern District of Pennsylvania.
Shows areas of land deeds.
Airport elevation 352 feet.
Airport elevation 192 feet.
Cadastral map.
Date estimated from presence of Canadian Government Railway.
Includes inset showing Portsmouth to Biddeford.
Relief shown by contours and spot heights.