Title: Geologic maps of pyroclastic-flow and related deposits of the 1980 eruptions of Mount St. Helens, Washington /
Authors: Kuntz, Mel A.; Rowley, Peter D.; MacLeod, Norman S.; Geological Survey (U.S.)
Publisher: The Survey ; For sale by Map Distribution,
Year: 1990
Subjects: Volcanic ash, tuff, etc. Washington (State) Saint Helens, Mount, Region Maps.; Lahars Washington (State) Saint Helens, Mount, Region Maps.; Geology Washington (State) Saint Helens, Mount, Region Maps.; Saint Helens, Mount, Region (Wash.) Maps.
Contents: map A. Deposits of the May 18, May 25, and June 12, 1980 eruptions -- map B. Deposits of the July 22, 1980 eruption -- map C. Deposits of the August 7, 1980 eruption -- map D. Deposits of the October 16-18, 1980 eruptions.