USGS Central Region Energy Resources Team

Central Region Energy Resources Team

Coal availability in the Hilight quadrangle, Powder River Basin, Wyoming: a prototype study in a western coal field

by Carol L. Molnia, Laura R. H. Biewick, Dorsey Blake, Susan J. Tewalt, M. Devereux Carter (US Geological Survey), and Charlie Gaskill (Bureau of Land Management)

Figure 11. Enlargement of coal-correlation diagram A-A\022 from Figure 10; no vertical datum and no horizontal scale. Note variations in thickness in the Main Wyodak coal bed and variations in number of partings. Thickness values shown in feet. See Figure 3 for the location of Line A-A\022. R, Rider Wyodak; M, Main Wyodak; L, Lower Wyodak coal beds.

U.S. Geological Survey Open-File Report 97-469