Geohydrology and Numerical Simulation of Groundwater Flow in the Central Virgin River Basin of Iron and Washington Counties, Utah (TP-116 OFP) Other Scale Geologic Maps and populous areas of the

and populous areas of the more distant central Wasatch Front

The sandstone and limestone facies is the only member of the Green River Formation exposed in the quadrangle at this stage of mapping

With nearly ninety miles of mapped trails

000 mg/L TDS transition) in the Uinta Basin was first mapped in 1987 and re-mapped in this study using similar methods

000 permeability values from over 1

Geohydrology and Numerical Simulation of Groundwater Flow in the Central Virgin River Basin of Iron and Washington Counties, Utah (TP-116 OFP) Other Scale Geologic Maps and populous areas of theBy: V. M. Heilweil, G. W. Freethey, C. D. Wilkowske, B. J. Stolp, and D. E. Wilberg Because rapid growth of communities in Washington and Iron Counties, Utah, is expected to cause an increase in the future demand for water resources, a hydrologic investigation was done to better understand ground water resources within the central Virgin River basin. This study focused on two of the principal ground water reservoirs within the basin: the upper Ash