TY - RPRT TI - Digital simulation of ground-water flow in the High Plains Aquifer in parts of Colorado, Kansas, Nebraska, New Mexico, Oklahoma, South Dakota, Texas, and Wyoming AU - R. R. Luckey AU - E. D. Gutentag AU - F.J. Heimes AU - J.B. Weeks PY - 1986 DO - 10.3133/pp1400d UR - https://pubs.usgs.gov/publication/pp1400D ID - pp1400D ER -