National Geologic Map Database
Product Description Page
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Title: Clay in the Portland region, Maine
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Author(s): Katz, F.J.
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Publishing Organization: U.S. Geological Survey
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Series and Number: Bulletin 530-E
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Larger Work: Contributions to economic geology (short papers and preliminary reports) 1911, part I - metals and nonmetals except fuels
- Publication Date: 1913
- Map Scale: 1:31,000
- Cross Section: None
- North Latitude: 43° 45' 0" N (43.7500)
- South Latitude: 43° 30' 0" N (43.5000)
- East Longitude: 70° 10' 1" W (-70.1670)
- West Longitude: 70° 30' 0" W (-70.5000)
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