National Geologic Map Database
Product Description Page
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Title: Geologic map of Mount St. Helens, Washington prior to the 1980 eruption
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Author(s): Hopson, C.A.
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Publishing Organization: U.S. Geological Survey
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Series and Number: Open-File Report OF-2002-468
- Publication Date: 2008
- Map Scale: 1:31,250
- Cross Section: None
- North Latitude: 46° 16' 54" N (46.2817)
- South Latitude: 46° 3' 5" N (46.0514)
- East Longitude: 122° 4' 21" W (-122.0725)
- West Longitude: 122° 20' 54" W (-122.3483)
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