U.S. Geological Survey Open-File Report 2006-1072

Published 2006
Online only
Version 1.0

Status Report: USGS Coal Assessment of the Powder River, Wyoming

By James A. Luppens, Timothy J. Rohrbacher, Jon E. Haacke, David C. Scott, and Lee M. Osmonson


This publication reports on the status of the current coal assessment of the Powder River Basin (PRB) in Wyoming and Montana. This slide program was presented at the Energy Information Agency's 2006 EIA Energy Outlook and Modeling Conference in Washington, DC, on March 27, 2006. The PRB coal assessment will be the first USGS coal assessment to include estimates of both regional coal resources and reserves for an entire coal basin. Extensive CBM and additional oil and gas development, especially in the Gillette coal field, have provided an unprecedented amount of down-hole geological data. Approximately 10,000 new data points have been added to the PRB database since the last assessment (2002) which will provide a more robust evaluation of the single most productive U.S. coal basin. The Gillette coal field assessment, including the mining economic evaluation, is planned for completion by the end of 2006. The geologic portion of the coal assessment work will shift to the northern and northwestern portions of the PRB before the end of 2006 while the Gillette engineering studies are finalized.



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For questions or comments concerning the scientific content of this report, contact James A. Luppens.

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