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  1. 161

    Location of lode and placer mining claims in Colorado.

    Published 1974
    view document online
    Government Document Book
  2. 162

    Report of the Chief of Engineers U.S. Army, 1935. In two parts. Part 1.

    Published 1936
    Online Access
    Government Document Electronic eBook
  3. 163

    Prospecting for placer gold in South Dakota / by Anderson, Doris L. M.

    Published 1951
    Book
  4. 164

    Report of the Chief of Engineers, U.S. Army, 1943. In two parts. Part 1. Vol. 2.

    Published 1944
    Online Access
    Government Document Electronic eBook
  5. 165

    Selected articles on hydraulic mining and hydraulic transport of solids.

    Published 1964
    Government Document Book
  6. 166

    Selected articles on hydraulic haulage and hoisting in mining /

    Published 1963
    Government Document Book
  7. 167

    Annual report of the Chief of Engineers U.S. Army on civil works activities, 1960. In two volumes. Vol. I.

    Published 1961
    Online Access
    Government Document Electronic eBook
  8. 168

    Annual reports of the War Department for the fiscal year ended June 30, 1900. Report of the Chief of Engineers. Part 8

    Published 1900
    Online Access
    Government Document Electronic eBook
  9. 169

    Alluvial mining : the geology, technology, and economics of placers / by Macdonald, Eoin H.

    Published 1983
    Book
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