TY - RPRT TI - Digital map of hydraulic conductivity for the High Plains Aquifer in parts of Colorado, Kansas, Nebraska, New Mexico, Oklahoma, South Dakota, Texas, and Wyoming AU - J. R. Cederstrand AU - M.F. Becker PY - 1998 DO - 10.3133/ofr98548 UR - https://pubs.usgs.gov/publication/ofr98548 ID - ofr98548 ER -