Maps, Data, Publications, and Resources
The commercial granites of New England. 448 (United States Geological Survey, 1923). at <https://pubs.er.usgs.gov/publication/b738>
[Digital Conversion] Bedrock geologic map of the Gloucester and Rockport quadrangles, Massachusetts. Digital Conversion (2007).
Brittle Structure Database of the Gloucester and Rockport quadrangles, Massachusetts. Open-File Report (2007).