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Album caption: Schistosity developed in quartzite by shearing along bedding planes in O'Laughlin's Quarry 2.5 miles northeast of Waterloo, Waterloo quadrangle, Dodge County, Wisconsin. September 1903. Plate 9-A in U.S. Geological Survey. Professional paper 106. 1918.


    map background search result map search result map Waterloo Quartzite, Portland quarry ledge, near south side of John O' Laughlin's quarry.  Wisconsin, 1903. Waterloo Quartzite, Portland quarry ledge, near south side of John O' Laughlin's quarry.  Wisconsin, 1903.