EarthWorks Geospatial Catalog

Surficial geologic map of the Northfield quadrangle, Belknap and Merrimack Counties, New Hampshire / by Daniel J. Tinkham and John A. Brooks, 2003 ; prepared in cooperation with New Hampshire Environmental Services, New Hampshire Geological Survey and United States Geological Survey STATEMAP.

"Geology mapped in 2003." "Produced by the United States Geological Survey. Controlled by USGS and NOS/NOAA. Compiled from aerial photographs taken 1981. Field checked 1984. Map edited 1987." Relief shown by contours. "Contour interval 20 feet." "43071-D5-TF-024." "GRANIT TILE 123." Includes quadrangle location map and index chart to adjoining 7.5 quadrangle names.
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