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Author
Bureau of Toppographic and Geologic Survey, Department of Conservaton and Natural Resources
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Institution
Penn State
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Year
2007
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1 entry found
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1. Digital data set of mapped karst features in south-central and southeastern Pennsylvania
2007. Bureau of Toppographic and Geologic Survey, Department of Conservaton and Natural Resources. This point dataset represents an (incomplete) inventory of karst features (herein categorized as sinkholes, surface depressions, surface mines, or ...