Image de couverture de Mount St. Helens volcanic-ash fall in the Bull Run Watershed, Oregon, March-June 1980
Mount St. Helens volcanic-ash fall in the Bull Run Watershed, Oregon, March-June 1980
TITLE_DISPLAY:
Mount St. Helens volcanic-ash fall in the Bull Run Watershed, Oregon, March-June 1980
Auteur:
Shulters, M. V., 1950-
Informations de publication:
[Reston, Va.?] : U.S. Dept. of the Interior, Geological Survey ; Alexandria, Va. (604 South Pickett Street, Alexandria, Va. 22304) : Free on application to Branch of Distribution, U.S. Geological Survey, 1980.
Format de document:
Livres
Série:
Geological Survey circular ; 850-A
Description matérielle:
v, A15 p. : ill., maps ; 26 cm.
Terme de vedette-matière:
Volcanic ash, tuff, etc. -- Oregon.
Terme géographique:
Saint Helens, Mount (Wash.) -- Eruption, 1980.

Bull Run River Watershed (Or.)
Vedette secondaire auteur:
Clifton, Daphne G.,.
Vedette secondaire - Nom collectif:
Geological Survey (U.S.)