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You searched for: geology Remove constraint geology Place Pennsylvania Remove constraint Place: Pennsylvania Place Washington County, Pennsylvania Remove constraint Place: Washington County, Pennsylvania Provider Pennsylvania State University Remove constraint Provider: Pennsylvania State University Time Period 2015-present Remove constraint Time Period: 2015-present

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1. Geology: York County, Pennsylvania

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2018. York County, Pennsylvania. York County Geology; Intended for illustration and demonstration purposes only.

2. Geology: Centre County, Pennsylvania

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2016. Centre County Government. Geology layer showing the short and long names of the geologic formation.