TY - RPRT TI - Progress report on sedimentation and chemical quality of water in the Powder River drainage basin, Wyoming and Montana (revised) AU - C. H. Hembree AU - B. R. Colby AU - H. A. Swenson AU - J.R. Davis PY - 1951 DO - 10.3133/ofr51115 UR - https://pubs.usgs.gov/publication/ofr51115 ID - ofr51115 ER -