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Progress map of the onshore-offshore surficial geologic map of the North Truro quadrangle, Barnstable County, Massachusetts.
Onshore-Offshore Surficial Geologic Map of the Newburyport East and Northern Half of the Ipswich Quadrangles, Massachusetts. Geologic Map (2010).
Note: this version has been peer reviewed, edited, and supersedes all previously published, open-file, versions of this map (2010)