National Geologic Map Database
Product Description Page
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Title: Physiographic diagrams of Mount St. Helens, Washington showing changes in its Summit Crater, summer, 1981
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Author(s): Alpha, T.R., Morley, J.M., Myers, Bobbie, and Leighley, Terry
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Publishing Organization: U.S. Geological Survey
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Series and Number: Miscellaneous Field Studies Map MF-1420
- Publication Date: 1982
- Map Scale: 1:12,500
- Cross Section: None
- North Latitude: 46° 17' 10" N (46.2861)
- South Latitude: 46° 8' 50" N (46.1472)
- East Longitude: 122° 3' 0" W (-122.0500)
- West Longitude: 122° 10' 30" W (-122.1750)
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