Maps, Data, Publications, and Resources
Preliminary compilation of the bedrock geology of the land area of the Boston 2 degree sheet, Massachusetts, Connecticut, Rhode Island and New Hampshire. USGS Open File Report (1977). at <http://pubs.er.usgs.gov/publication/ofr77285>
An alternative interpretation of the geology of the eastern part of the state.
The bedrock geology of Massachusetts. U.S. Geological Survey Professional Paper 1366, (United States Geological Survey, 1988).