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Kopera, J. P., DiNitto, R. G. & Hepburn, J. C. Bedrock geologic map of the Marlborough quadrangle, Massachusetts. geologic Map (2004).
Barosh, P. J. [Draft] Preliminary bedrock geologic map of the Oxford quadrangle, Worcester County, Massachusetts, Providence County, Rhode Island and Windam County, Connecticut. Open File Report (2005).
GIS and metadata are forthcoming
Kopera, J. P. & Hansen, W. R. Preliminary Bedrock Geologic Map of the Hudson 7.5' Quadrangle Worcester and Middlesex Counties, Massachusetts. Open File Report (2014).
Note: This map supersedes "Preliminary bedrock geologic map of the Hudson quadrangle, Massachusetts", MGS map published in 2005 Report accompanies map-- be sure to download both!
Kopera, J. P. & Hansen, W. R. Preliminary bedrock geologic map of the Hudson quadrangle, Massachusetts. Open-File Report (2005).
Kopera, J. P., Shaw, C. E. & Fernandez, M. Preliminary bedrock geologic Map of the Milford quadrangle. Open-File Report (2007).
Kopera, J. P., Alvord, D. C., Jahns, R. H., Willard, M. E. & White, W. S. Preliminary bedrock geologic map of the Westford quadrangle, Massachusetts. Open-File Report (2009).
Kopera, J. P. & Shaw, C. J. Preliminary bedrock Geology of the Northern Portion of the Blackstone quadrangle, Massachusetts. Open-File Report (2008). at <http://www.geo.umass.edu/stategeologist/>
Massey, M. A. Progress map of the preliminary bedrock geologic map of the Billerica quadrangle, Massachusetts. (2011).