Coal Resource Classification System of the U.S. Geological Survey
By Gordon H. Wood, Jr., Thomas M. Kehn, M. Devereux Carter, and William C. Culbertson
GEOLOGICAL SURVEY CIRCULAR 891
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| Figure 26 - Early conventional electric log (1957) of the Owanah Kendrick No. 1 well, Big Horn County, Montana |
Created by the EERT WWW Staff.
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