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Henderson, John R.
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Subject
Geological maps
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Image
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Year
1949
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1. Total intensity aeromagnetic map of Benton County, Indiana: relative to arbitrary datum
1949. Dempsey, W. J., Duffner, R. T., and Henderson, John R. Includes text and location map. Scale 1:63360. United States Department of the Interior, Geological Survey; aeromagnetic survey 1947 by W.J. Dempse...