Sauk County Wisconsin

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On the relations of the sandstone, conglomerates, and limestone of Sauk County, Wisconsin, to each other and to the Azoic
James Howard Eaton

American Journal of Science June 1873, s3-5 (30) 444-447; DOI: https://doi.org/10.2475/ajs.s3-5.30.444
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On the age of the quartzites, schists, and conglomerates of Sauk County, Wisconsin
Roland Duer Irving

American Journal of Science February 1872, s3-3 (14) 93-99; DOI: https://doi.org/10.2475/ajs.s3-3.14.93

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