Maps, Data, Publications, and Resources
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!
Preliminary bedrock geologic map of the Westford quadrangle, Massachusetts. Open-File Report (2009).
Preliminary bedrock geologic map of the Ayer quadrangle, Massachusetts. Open-File Report (2006). at <http://www.geo.umass.edu/stategeologist/>
[Draft] Preliminary bedrock geologic map of the Lawrence quadrangle, Massachusetts. Open-File Report (2005).
Preliminary bedrock geologic map of the Hudson quadrangle, Massachusetts. Open-File Report (2005).