Effects of the eruptions of Mount St. Helens on physical, chemical, and biological characteristics of surface water, ground water, and precipitation in the western United States /
Lee, Douglas B.
[Washington] : U.S. G.P.O. ; Denver, CO : For sale by the U.S. Geological Survey, Information Services,
1996.
Maps on 1 folded leaf in pocket.
Includes bibliographical references (p. 117-123).
Volcanic ash, tuff, etc.
Volcanic ash, tuff, etc.
Water
Water