Showing 1 - 4 results of 4 for search '"Iowa"', query time: 0.12s Refine Results
  1. 1
    A hydrogeologic study of the ground-water reservoirs contributing base runoff to Four Mile Creek, east-central Iowa /
    by Kunkle, George R.
    Published 1968
    Subjects: “...Groundwater Iowa Fourmile Creek (Boone County-Polk County)...”
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    Government Document eBook
  2. 2
    Exploratory drilling for evidence of zinc and lead ore in Dubuque County, Iowa /
    Subjects: “...Lead ores Iowa Dubuque County....”
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    Government Document eBook
  3. 3
    The geology of the upper Mississippi Valley zinc-lead district /
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    Government Document eBook
  4. 4
    Zinc-lead-copper resources and general geology of the upper Mississippi Valley district /
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    Government Document eBook
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