Map and Chart--KGS


Historically, the Springfield (W. Ky. No. 9) opal bed has been the leading source of coal production in the Western Kentucky Coal Field. With 2009 production more than 21 million tons and another 8 million tons of idle capacity, it is also the most important resource in the state of Kentucky. The Springfield coal is known for its lateral continuity in terms of both thickness and quality. It is a medium-sulfur product, desirable for power plants with sulfur-reduction capability, and has higher Btu values and lower chlorine contents compared to other Illinois Basin areas north of Kentucky. It is estimated to have the largest original and remaining resource in the Western Kentucky Coal Field (Greb and others, 1992). This map presents a revised interpretation of coal thickness since the last assessment (Andrews and others, 2000), uses newly acquired data, and presents updated mining information.

Publication Date



Series XII

Report Number

Map and Chart 197

Digital Object Identifier (DOI)


© 2010, University of Kentucky, Kentucky Geological Survey

Cartography by Terry Hounshell

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