National Geologic Map Database
Product Description Page
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Title: Water resources of the Philadelphia district
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Author(s): Bascom, Florence
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Publishing Organization: U.S. Geological Survey
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Series and Number: Water-Supply Paper 106 [75 p.]
- Publication Date: 1904
- Map Scale: 1:280,560
- Cross Section: Yes
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* Names and boundaries are not necessarily authoritative, and are provided here solely for general orientation.