Map of Indiana showing thickness of Silurian rocks and location of reefs (1992)

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Item Number: MM54
Map Scale: 1:500,000


Ault, C. H., Becker, L. E., Droste, J. B., Keller, S. J., and Shaver, R. H., 1992, Map of Indiana showing thickness of Silurian rocks and location of reefs: Indiana Geological Survey Miscellaneous Map 54, scale 1:500,000.

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Keywords: thickness, map, Silurian, reef

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Updated 8/19/2020