Research Catalog

Geology and zinc-lead deposits in the Couler Valley area, Dubuque County, Iowa / by C. Ervin Brown, Lorence G. Collins, and Percy Crosby.

Title
Geology and zinc-lead deposits in the Couler Valley area, Dubuque County, Iowa / by C. Ervin Brown, Lorence G. Collins, and Percy Crosby.
Author
Brown, C. Ervin (Clarence Ervin), 1925-

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Details

Additional Authors
  • Collins, Lorence G. (Lorence Gene), 1931-
  • Crosby, Percy L. (Percy Leo), 1891-1964.
  • Geological Survey (U.S.)
  • Iowa Geological Survey.
Description
1 map : col.; 45 x 53 cm., on sheet 105 x 89 cm., folded in envelope 30 x 24 cm.
Series Statement
Mineral investigations field studies ; map MF-42
Alternative Title
Couler Valley area, Dubuque County, Iowa
Subjects
Owning Institutions
Columbia University Libraries