Nichols, W. D. 1979. Simulation Analysis of the Unconfined Aquifer, Raft River Geothermal Area, Idaho-Utah (WSP-2060). 46 pp., size 6" x 9". Description: This study undertaken to define quantitatively the geohydrologic properties and hydrodynamics of the shallow aquifer system in the southern Raft River Valley and to determine if there is any significant hydrodynamic interdependence between this system and the deeper geothermal system known to underlie at least part of the area. Any such interdependence between the two systems would be a significant factor in concurrent development of the geothermal reservoir and the shallow groundwater system.