Footprints in the ash the explosive story of Mount St. Helens

Manylion Llyfryddiaeth
Prif Awdur:	Morris, John D.
Awduron Eraill:	Austin, Steven A.
Fformat:	Llyfr
Iaith:	English
Cyhoeddwyd:	Green Forest, AR Master Books c2003.
Pynciau:	Volcanic ash, tuff, etc. > Washington (State) > Saint Helens, Mount. Geology, Stratigraphic. Geology > Washington (State) > Saint Helens, Mount. Geology > Washington (State) > Spirit Lake. Saint Helens, Mount (Wash.) > Eruption, 1980.