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126. Contour map of the bedrock surface of the Manchester Quadrangle, Connecticut [cartographic material]
1963. 2012-09-24T18:48:03Z. 2013-03-18T22:19:42Z. Colton, Roger B. (Roger Burnham), 1924-. U.S. Geological Survey. English. Public. Connecticut, Hartford County, and Tolland County.
1956. 2012-09-04T13:39:57Z. 2012-09-04T14:05:57Z. Geological Survey (U.S.). U.S. Geological Survey. English. Public. Connecticut, Cornwall (Conn.), and Litchfield County.
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