Aerial view of pyroclastic-flow deposits of May 18, 1980. Skamania County, Washington. 1980.
Dates
Date Taken
1980
Summary
Album caption: Aerial view of pyroclastic-flow deposits of May 18, 1980, eruption of Mount St. Helens, on the western part of the pumice plain. Several phreatic-explosion pits, 5-25 m across, are visible. Base of stairsteps is in background. Skamania County, Washington. 1980. Published as figure 288 in U.S. Geological Survey. Professional paper 1250. 1981. Handwritten notes on album caption: (Photo by P. Rowley) Index card unavailable.
Summary
Album caption: Aerial view of pyroclastic-flow deposits of May 18, 1980, eruption of Mount St. Helens, on the western part of the pumice plain. Several phreatic-explosion pits, 5-25 m across, are visible. Base of stairsteps is in background. Skamania County, Washington. 1980. Published as figure 288 in U.S. Geological Survey. Professional paper 1250. 1981.
Handwritten notes on album caption: (Photo by P. Rowley)
Available in the U.S. Geological Survey Denver Library Photographic Collection, Mount St. Helens Collection.
Rights
This USGS product is considered to be in the U.S. public domain. For further information on the USGS Information Policies and Instructions, refer to the Copyrights and Credits section on this web page: http://www.usgs.gov/laws/info_policies.html