Guidebook to the Upper Mississippi Valley base-metal district
By: by A. V. Heyl, W. A. Broughton, and W. S. West.
Contributors: Broughton, W. A. 1914-; West, Walter S. 1912- joint author.; Geological Survey  (U.S.); Geological Society of America.
Series: University of Wisconsin. Geological and Natural History Survey. Information circular no. 16; Information circular (Wisconsin Geological and Natural History Survey) ;; no. 16.
Publisher: University of Wisconsin, Geological and Natural History Survey
Published: 1970
Place of publication: Madison
Language: eng
Number of pages: 49
Subjects: Ore deposits -- Mississippi River Valley -- Guidebooks.; Geology -- Mississippi River Valley -- Guidebooks.
Notes: Bibliography: p. 39-45.
"Prepared in cooperation with the U.S. Geological Survey for the annual meeting of the Geological Society of America and associated societies, Milwaukee, Wisconsin, 1970."