Author: Simmons, George Clarke, 1923- - Yale University Library GeoBlacklight Search Results

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1. Bedrock geologic map of the Ishpeming quadrangle, Marquette County, Michigan [cartographic material]

1974. 2012-04-13T15:47:54Z. 2012-04-16T15:59:29Z. Simmons, George Clarke, 1923-. The Survey. English. Public. Michigan and Marquette County.

2. Geologic map of the Clay City quadrangle, Powell and Estill Counties, Kentucky [cartographic material]

1967. 2012-01-20T20:50:34Z. 2012-03-05T17:35:08Z. Simmons, George Clarke, 1923-. U.S. Geological Survey. English. Public. Kentucky, Powell County, and Estill County.

3. Geologic map of the Palmer quadrangle, east-central Kentucky [cartographic material]

1967. 2012-01-18T19:32:52Z. 2012-03-05T17:34:24Z. Simmons, George Clarke, 1923-. U.S. Geological Survey. English. Public. Kentucky, Estill County, Madison County, and Clark County.

4. Geologic map of the Union City quadrangle, Madison and Clark Counties, Kentucky [cartographic material]

1967. 2012-01-17T19:01:23Z. 2012-03-05T17:34:00Z. Simmons, George Clarke, 1923-. U.S. Geological Survey. English. Public. Kentucky, Madison County, and Clark County.

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