Publisher: State Geological Survey - Yale University Library GeoBlacklight Search Results

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1. Geologic map, state of South Dakota

1953. 2018-05-14T20:08:44Z. 2018-05-14T20:08:44Z. South Dakota Geological Survey. State Geological Survey. English. cartographic image. Public. South Dakota and South Dakota.

2. Shipping coal mines in Illinois

1966. 2018-05-15T17:46:00Z. 2018-05-15T17:46:00Z. Simon, Jack Aaron. State Geological Survey. English. cartographic image. Public. Illinois and Illinois.

3. Structure map, state of South Dakota

1953. 2018-05-14T19:40:44Z. 2018-05-14T19:40:44Z. South Dakota Geological Survey. State Geological Survey. English. cartographic image. Public. South Dakota and South Dakota.