Map showing relative ease of excavation of geologic units in the Henrys Lake quadrangle, Idaho and Montana /

Bibliographic Details
Main Author: Witkind, Irving J. (Irving Jerome), 1917-2008
Corporate Author: Geological Survey (U.S.)
Format: Government Document Map
Language:English
Published: Washington, D.C. : U.S. Geological Survey, 1972.
Series:Miscellaneous investigations series (Geological Survey (U.S.)) ; map I-781-G.
Subjects:
Search Result 1
Government Document Map