| Title | Preliminary Bedrock Geologic Map of the area surrounding Shepley's Hill, Towns of Ayer and Devens, Massachusetts |
| Publication Type | Map |
| 2008 | |
| Authors | Kopera, JP |
| Series Title | Open-File Report |
| Edition | OFR08-05 |
| Massachusetts Geological Survey | |
| #BedrockMaps, #MGSPub, army, arsenic, Ayer, ayer granite, chelmsford granite, Clinton Newbury Fault Zone, Devens, landfill | |
| Map Scale | 1:12000 |
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