National Geologic Map Database
Product Description Page
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Title: Surficial Geology of the Portland 1:100,000 Quadrangle, Maine
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Author(s): Tolman, S.S.
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Publishing Organization: Maine Geological Survey
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Series and Number: Open-File Map 06-1
- Publication Date: 2006
- Map Scale: 1:100,000
- Cross Section: None
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* See base map disclaimer below
- Publication Order Number: 06-1
* Names and boundaries are not necessarily authoritative, and are provided here solely for general orientation.