Surficial geologic map of the Plymouth quadrangle, Grafton County, New Hampshire / surficial mapping completed by Daniel J. Tinkham, John A. Brooks, and Mark B. Wingsted (consulting geologists at Emery & Garrett Groundeater, Inc.) during the 2013 field season ; digital compilation by Emery & Garrett Groundeater, Inc.
- Relief shown by contours and spot heights. "Contour interval 20 feet." "Base map (provisional) by the U.S. Geological Survey, Plymouth, New Hampshire." "GRANIT tile no. 84." "Surficial geologic map open-file series GEO-084-024000-SMOF." Includes quadrangle location map, 4 color photos (Representative photographs of the map area), "Ground penetrating radar surveys" graph, "Plymouth quadrangle surficial geology correlation chart" 1 inset (Shaded-relief digital elevation model (DEM) data showing the southeast trending glacial topographic features within the Plymouth quadrangle), and text (Glacial geology of the Plymouth quadrangle).
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