EarthWorks Geospatial Catalog

Surficial geologic map of the Gilmanton Ironworks quadrangle, Belknap County, New Hampshire / by Chad Wittkop.

Relief shown by contours and spot heights. "Contour interval 20 feet." "Base map (provisional) by the U.S. Geological Survey, 1987." "Geology mapped 2006-2007. Digital map published 2008." Includes quadrangle location map, 3 color photos and text (Glacial geology of New Hampshire).
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