EarthWorks Geospatial Catalog

Townsend quadrangle, Massachusetts--New Hampshire [cartographic material] : 7.5 minute series (topographic) / mapped, edited, and published by the Geological Survey ; control by USGS, and Massachusetts Geodetic Survey.

Relief shown by contours and spot heights. "Topography by planetable surveys 1942. Revised 1965." "Revisions shown in purple compiled in cooperation with the State of Massachusetts agenecies from aerial photographs taken 1975 and other source data. This information not field checked. Map edited 1979." "42071-F6-TF-024." "DMA 6669 II NW--Series V814." "Contour interval 10 feet." Includes quadrangle location map.
U.S. Geological Survey
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