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Diagram of the Lead-Bearing Crevices near Dubuque, Iowa, 1858
Iowa Geological Survey
Office of the State Archaeologist. University of Iowa University of Iowa. Libraries. Map Collection
L.H. Bradford & Co.
English
Mining
1890-1900
United States
Iowa
Dubuque County
Dubuque
1 map
Unknown
Material in the public domain. No restrictions on use.
Contact the University of Iowa Libraries Map Collection: http://www.lib.uiowa.edu/sc/location-and-hours/
Lead Mine Map.jp2; 2023.jp2
Still image
geological maps diagrams land surveys
jp2