Subject: Coal / Year: 1950 - Yale University Library GeoBlacklight Search Results

1. Geology and coal deposits of the Jasonville quadrangle, Clay, Greene, and Sullivan counties, Indiana [cartographic material]

1950. 2018-06-22T19:57:37Z. 2018-09-05T20:10:11Z. Wier, Charles E. (Charles Eugene), 1921- cartographer. U.S. Geological Survey. English. cartographic image. Public. Indiana, Clay County, Greene County, Sullivan County, Clay County., Greene County., and Sullivan County.

2. Map showing coal resources of Montana [cartographic material]

1950. 2018-06-22T19:24:09Z. 2018-09-05T20:10:37Z. Geological Survey (U.S.). U.S. Geological Survey. English. cartographic image. Public. Montana, U.S., and Montana.

3. The Fire Clay and Whitesburg coals in the Hyden quadrangle, Leslie, Clay and Perry counties, Kentucky [cartographic material]

1950. 2018-06-22T20:01:34Z. 2018-09-05T20:07:27Z. Johnston, J. E. The Survey. English. cartographic image. Public. Kentucky, Clay County, Leslie County, Perry County, Clay County (Ky.), Leslie County (Ky.), Perry County (Ky.), Kentucky., Clay County., Leslie County., and Perry County.