Physiographic diagrams of Mount St. Helens, Washington, showing changes in its summit crater, 1984 /

Bibliographic Details
Corporate Author:	Geological Survey (U.S.)
Other Authors:	Alpha, Tau Rho, Myers, Bobbie
Format:	Government Document Map
Language:	English
Published:	Reston, Va. : The Survey ; 1986.
Series:	Miscellaneous field studies ; map MF-1906.
Subjects:	Volcanoes > Washington (State) > Saint Helens, Mount > Maps. Saint Helens, Mount (Wash.) > Maps, Physical.

Description
Item Description:	Relief shown by landforms. Includes location map. Cartographic material.
Physical Description:	4 diagrams on 1 sheet ; sheet 83 x 107 cm., folded in envelope 30 x 24 cm.