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3 results containing "Proprietors of the Locks & ..."

Larger image available anywhere (3) | Larger image available only at the Library of Congress | Not Digitized

• 1.
  #gallery ma1178

  Merrimack Canal, Rolling Dam, Lowell, Middlesex County, MA
  Documentation compiled after 1968 | Photo(s): 1, Data Page(s): 2, Photo Caption Page(s): 1 | Historic American Engineering Record
  HAER MASS,9-LOW,10B-

• 2.
  #gallery ma1187

  Northern Canal, Great River Wall, Lowell, Middlesex County, MA
  Documentation compiled after 1968 | Photo(s): 14, Data Page(s): 2, Photo Caption Page(s): 2 | Historic American Engineering Record
  HAER MASS,9-LOW,15B-

• 3.
  #gallery ma1188

  Northern Canal, Waste Gates, Lowell, Middlesex County, MA
  Documentation compiled after 1968 | Photo(s): 8, Measured Drawing(s): 5, Data Page(s): 2, Photo Caption Page(s): 1 | Historic American Engineering Record
  HAER MASS,9-LOW,15C-