Exploratory drilling for evidence of zinc and lead ore in Dubuque County, Iowa /

Bibliographic Details
Main Authors:	Flint, Arthur E., 1913- (Author), Brown, C. Ervin (Clarence Ervin), 1925- (Author)
Corporate Author:	Iowa Geological Survey (sponsoring body.)
Format:	Government Document eBook
Language:	English
Published:	[Washington, D.C.] : United States Department of the Interior, Geological Survey, 1956.
Series:	Geological Survey bulletin ; 1027-K. Contributions to economic geology.
Subjects:	Lead ores > Iowa > Dubuque County. Zinc ores > Iowa > Dubuque County. Lead ores. Zinc ores. Iowa > Dubuque County.
Online Access:	https://purl.fdlp.gov/GPO/gpo63750

Description
Item Description:	Title from title screen (viewed July 22, 2014). "Prepared in cooperation with the Iowa Geological Survey."
Physical Description:	1 online resource (iii, 471-499 pages) : illustrations, map, charts.
Bibliography:	Includes index.