National Geologic Map Database
General Information
- Title: Sediment deposition in the Columbia and lower Cowlitz Rivers, Washington - Oregon, caused by the May 18, 1980, eruption of Mount St. Helens
- Author(s): Haeni, F.P.
- Publishing Organization: U.S. Geological Survey
- Series and Number: Circular 850-K
- Larger Work: Hydrologic effects of the eruptions of Mount St., Helens, Washington, 1980
- Publication Date: 1983
- Map Scale: 1:41,700
- Cross Section: None
- North Latitude: 46° 7' 1" N (46.1170)
- South Latitude: 46° 0' 22" N (46.0060)
- East Longitude: 122° 50' 49" W (-122.8470)
- West Longitude: 122° 58' 1" W (-122.9670)
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