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Geology of the Lower fc- Marias River Area i
* Chouteau,^ Hill,' and Liberty Counties Montana
By J. FRED SMITH, JR., I. J. WITKIND, and-D. Er TRIMBLE
CONTRIBUTIONS TO GENERAL GEOLOGY
GEOLOGICAL SURVEY BULLETIN 1071-E
Prepared as part of a program of the Department of the Interior for development of the Missouri River basin
UNITED STATES GOVERNMENT PRINTING OFFICE, WASHINGTON : 1959 » UNITED STATES DEPARTMENT OF THE INTERIOR
FRED A. SEATON, Secretary
GEOLOGICAL SURVEY
Thomas B. Nolan, Director
For sale by the Superintendent of Documents, U.S. Government Printing Office Washington 25, D.C. CONTENTS