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Bayley, William Shirley
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Geological maps
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Minnesota
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1. Geologic Map of Pigeon Point, Minnesota
1910. Bayley, William Shirley, A. Hoen & Co., and U.S. Lake Survey. Scale 1:22500. "By W.S. Bayley, 1890." Relief shown by contours. Includes 2 cross section insets and legend of rock types. "Monograph LII Plate XII...