Author: Nelson, Willis H. (Willis Howard), 1920- / Spatial Coverage: Trigg County - Yale University Library GeoBlacklight Search Results

Start Over Author Nelson, Willis H. (Willis Howard), 1920- Spatial Coverage Trigg County

1. Geologic map of the Gracey quadrangle, Trigg and Christian Counties, Kentucky [cartographic material]

1968. 2012-02-17T20:59:32Z. 2012-03-05T17:41:33Z. Nelson, Willis H. (Willis Howard), 1920-. U.S. Geological Survey. English. Public. Kentucky, Trigg County, and Christian County.

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1. Geologic map of the Gracey quadrangle, Trigg and Christian Counties, Kentucky [cartographic material]

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