TY - RPRT TI - Thickness of rocks from the surface to the top of the Permian Minnelusa Formation, Powder River basin, Wyoming and Montana AU - J. E. Fox AU - Debra K. Higley PY - 1987 DO - 10.3133/ofr87340u UR - https://pubs.usgs.gov/publication/ofr87340U ID - ofr87340U ER -