1961. 2017-12-07T16:19:49Z. 2017-12-07T16:19:49Z. Geological Survey (U.S.), issuing body. Interior--Geological Survey. English. cartographic image. Public. New Hampshire, Vermont, New Hampshire., and Vermont.
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1951. 2017-12-07T16:24:49Z. 2017-12-07T16:24:49Z. Geological Survey (U.S.), issuing body. Interior--Geological Survey. English. cartographic image. Public. New Hampshire, Vermont, New Hampshire., and Vermont.