Structure-contour maps of the Powder River basin, Montana and Wyoming
- by James E. Fox and Debra K. Higley, 1996 ; graphic design and cartography by Patricia L. Wilber.
- Reston, Va. : U.S. Geological Survey ; Denver, CO : for sale by U.S.G.S. Information Services, 1996.
- Physical description
- 6 maps on 1 sheet ; each 44 x 47 cm., sheet 104 x 144 cm., folded in envelope 31 x 24 cm. + text (7 p. : tables, ill. ; 28 cm.)
Geological Survey (U.S.). Oil and gas investigations. Chart ; OC-147-A.