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Map of Middlesex County, Massachusetts /
Relief shown by hachures. LC Land ownership maps, 316 Available also through the Library of Congress Web site as a raster image.
Middlesex Canal, Canal Office, Middlesex Village, Lowell, Middlesex Co...
Survey number: HABS MA-380-A Public domain photograph - historical image of Massachusetts, United States, free to use, no copyright restrictions image - Picryl description