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1985. Geological Survey (U.S.). This layer is a digital raster graphic of the 7.5 x 15 Minute USGS topographic map of the Boston North, Massachusetts quadrangle, 1985. Scale 1:25,... United States Geological Survey.
1943. Harvard Map Collection, Harvard College Library. This layer is a digital raster graphic (DRG) of the historic 15-minute USGS topographic map of the Boston South, Massachusetts quadrangle. The surv...
1992. Harvard Map Collection, Harvard Library and Massachusetts. Department of Public Works. This layer is a georeferenced raster image of the historic paper map entitled: Region G (Merrimack Valley and MAPC North) : functional classificati... Harvard Map Collection, Harvard Library.
1886. Harvard Map Collection, Harvard College Library. This layer is a digital raster graphic of the historic 15-minute USGS topographic map of the Lawrence, Massachusetts quadrangle. The survey date (g...
1988. Geological Survey (U.S.). This layer is a digital raster graphic of the 30 x 60 Minute USGS topographic map of the Lowell, Massachusetts quadrangle, 1988. Scale 1:100,000. I... United States Geological Survey.
1856. Harvard Map Collection, Harvard College Library and Walling, Henry Francis, 1825-1888. This layer is a georeferenced raster image of the historic paper map entitled: Map of Middlesex County, Massachusetts, the details from original su... Harvard Map Collection, Harvard College Library.
1987. Geological Survey (U.S.). This layer is a digital raster graphic of the 7.5 x 15 Minute USGS topographic map of the Reading, Massachusetts quadrangle, 1987. Scale 1:25,000. ... United States Geological Survey.
1983. Harvard Map Collection, Harvard Library, MacKay, Joseph H., and Oxman, Jeffrey N. This layer is a georeferenced raster image of the historic paper map entitled: Stoneham, Massachusetts, official zoning map : January 1983 / by Jos... Harvard Map Collection, Harvard Library.
1985. Harvard Map Collection, Harvard Library, MacKay, Joseph H., and Oxman, Jeffrey N. This layer is a georeferenced raster image of the historic paper map entitled: Stoneham, Massachusetts, official zoning map : October 21, 1985 / by... Harvard Map Collection, Harvard Library.