TY - RPRT TI - Delineation of the hydrogeologic framework of the Big Sioux aquifer near Sioux Falls, South Dakota, using airborne electromagnetic data AU - Kristen J. Valseth AU - Gregory C. Delzer AU - Curtis V. Price PY - 2018 DO - 10.3133/sim3393 UR - https://pubs.usgs.gov/publication/sim3393 ID - sim3393 ER -