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1953. 2017-12-07T16:27:32Z. 2017-12-07T16:27:32Z. Geological Survey (U.S.). U.S. Geological Survey. English. cartographic image. Public. New Hampshire, Vermont, New Hampshire., and Vermont.
1976. 2017-12-07T16:11:08Z. 2017-12-07T16:11:08Z. Geological Survey (U.S.). U.S. Geological Survey. English. Public. New Hampshire, Vermont, New Hampshire., and Vermont.