TY - RPRT TI - Hydrogeologic characteristics of the valley-fill aquifer in the Greeley reach of the South Platte River valley, Colorado AU - R. Theodore Hurr AU - P. A. Schneider PY - 1973 DO - 10.3133/ofr73124 UR - https://pubs.usgs.gov/publication/ofr73124 ID - ofr73124 ER -