1980. 2012-10-22T13:34:45Z. 2012-10-22T13:34:45Z. Pennsylvania. Bureau of Topographic and Geologic Survey. The Survey. English. Public. Pennsylvania.
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1964. 2018-04-17T20:15:13Z. 2018-09-05T19:41:47Z. Pennsylvania. Bureau of Topographic and Geologic Survey. Pennsylvania Bureau of Topographic and Geologic Survey. English. cartographic image. Public. Pennsylvania, Clearfield County, Centre County, Clinton County, Centre County., Clearfield County., and Clinton County.