Lowell quadrangle, Massachusetts--New Hampshire [cartographic material] : 7.5 minute series (topographic) / mapped, edited, and published by the Geological Survey ; Commonwealth of Massachusetts, Department of Public Works.
Relief shown by contours and spot heights. "Revisions shown in purple compiled in cooperation with the state of Massachusetts from aerial photographs taken 1977 and other source data. This information not field checked. Map edited 1979." "Control by USGS, USC&GS, and Massachusetts Geodetic Survey." "Topography by planetable surveys 1939 and 1944. Revised 1966." "Revisions shown in purple compiled in cooperation with State of Massachusetts agencies from aerial photographs taken 1977 and other source data. This information not field checked. Map edited 1979." Includes quadrangle location map. "42071-F3-TF-024." "DMA 6769 III NE--Series V814."
- U.S. Geological Survey
- Held by
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