1975. 2016-06-07T13:49:39Z. 2016-08-20T21:14:14Z. Gates, Olcott, 1919-. Maine Geological Survey. English. cartographic image. Public. Maine, Washington County, and Washington County.
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1954. 2018-03-23T13:15:23Z. 2020-08-22T21:41:48Z. Maine Geological Survey. Maine Geological Survey. English. cartographic image. Public. Washington County (Me.), Maine, Maine., and Washington County.