Exploratory drilling program of the U. S. Geological Survey for evidences of zinc-lead mineralization in Iowa and Wisconsin, 1950-51 /

Bibliographic Details
Main Authors:	Agnew, Allen F., 1918-2012 (Author), Flint, Arthur E., 1913- (Author), Allingham, John D. (Author)
Corporate Author:	Wisconsin Geological and Natural History Survey
Format:	Government Document eBook
Language:	English
Published:	Washington, D.C. : United States Department of the Interior, Geological Survey, 1953.
Series:	Geological Survey circular ; 231.
Subjects:	Lead ores > Iowa. Lead ores > Wisconsin. Zinc ores > Iowa. Zinc ores > Wisconsin. Lead mines and mining. Zinc mines and mining. Iowa. Wisconsin.
Online Access:	https://purl.fdlp.gov/GPO/gpo109510

Description
Item Description:	"Prepared in cooperation with the Wisconsin Geological and Natural History Survey."
Physical Description:	1 online resource (37 pages) : illustrations, maps.
Bibliography:	Includes bibliographical references (page 11).