Hunt Energy Co. drilled temperature-gradient and slim drill holes in an area near the south end of Dixie Valley (SMU data). Anomalous subsurface temperatures are found in an area about 8.8 km north-south by 5.6 km east-west. Temperatures as high as 87.2ºC at 610 m are reported. Data from this well taken together with adjacent wells suggest approximately isothermal conditions of 76.7-87.8ºC at 150-600 m (GeothermEx, 2004). Location: 39.51ºN, 118.16ºW.