1966. 2012-01-09T20:51:29Z. 2012-03-05T17:31:26Z. Colton, Roger B. (Roger Burnham), 1924-. U.S. Geological Survey. English. Public. Massachusetts, Hampden County, Connecticut, and Hartford County.
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2. 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.
1965. 2011-12-19T15:50:47Z. 2012-03-05T17:26:04Z. Colton, Roger B. (Roger Burnham), 1924-. U.S. Dept. of the Interior, Geological Survey. English. Public. Connecticut, Hartford County, Tolland County, Manchester Region, and Manchester Region (Conn.).
1960. 2011-05-03T17:31:20Z. 2012-02-14T23:32:05Z. Colton, Roger B. (Roger Burnham), 1924-. U.S. Geological Survey. English. Public. Connecticut and Hartford County.
1969. 2012-02-22T16:13:17Z. 2012-02-22T16:13:17Z. Colton, Roger B. (Roger Burnham), 1924-. U.S. Geological Survey. English. Public. Connecticut and Litchfield County.
1971. 2012-03-12T12:50:47Z. 2012-03-27T23:58:25Z. Colton, Roger B. (Roger Burnham), 1924-. U.S. Geological Survey. English. Public. Massachusetts, Hampden County, Connecticut, and Hartford County.
