Zinc-lead-copper resources and general geology of the upper Mississippi Valley district /

Bibliographic Details
Main Author:	Heyl, Allen V. (Allen Van), 1918-2008 (Author)
Corporate Authors:	Wisconsin Geological and Natural History Survey (sponsoring body.), Iowa Geological Survey (sponsoring body.), Illinois State Geological Survey (sponsoring body.)
Format:	Government Document eBook
Language:	English
Published:	[Washington, D.C.] : United States Department of the Interior, Geological Survey, 1955.
Series:	Contributions to economic geology. Geological Survey bulletin ; 1015-G.
Subjects:	Geology > Mississippi River Valley. Zinc mines and mining > Mississippi River Valley. Lead mines and mining > Mississippi River Valley. Copper mines and mining > Mississippi River Valley. Copper mines and mining. Geology. Lead mines and mining. Zinc mines and mining. Mississippi River Valley.
Online Access:	https://purl.fdlp.gov/GPO/gpo62517

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