TY - RPRT TI - Hydrogeologic framework and estimates of ground-water volumes in Tertiary and upper Cretaceous hydrogeologic units in the Powder River basin, Wyoming AU - Kurt Hinaman PY - 2005 DO - 10.3133/sir20055008 UR - https://pubs.usgs.gov/publication/sir20055008 ID - sir20055008 ER -