Volcaniclastic sedimentation in the Lewis River Valley, Mount St. Helens, Washington - Processes, extent, and hazards.  By Jon J. Major and Kevin M. Scott
Contributors: Scott, K.V.
Publisher: U.S. Dept. of the Interior
Place of publication: Washington
Language: eng
Number of pages: 38
Subjects: Volcanic ash, tuff, etc. - Washington (State); Mount St. Helens volcano
Notes: 11