National Geologic Map Database
Product Description Page
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Title: U.S. Geological Survey coal quality (COALQUAL) database: version 2.0
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Author(s): Bragg, L.J., Oman, J.K., Tewalt, S.J., Oman, C.L., Rega, N.H., Washington, P.M., and Finkelman, R.B.
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Publishing Organization: U.S. Geological Survey
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Series and Number: Open-File Report OF-97-134
- Publication Date: 1997
- Map Scale: 1:5,000,000
- Cross Section: None
- North Latitude: 70° 0' 0" N (70.0000)
- South Latitude: 25° 50' 10" N (25.8360)
- East Longitude: 74° 43' 34" W (-74.7260)
- West Longitude: 170° 0' 0" W (-170.0000)
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