Water temperatures at Klobe (or Clobe) Hot Springs at the Bartholomae Ranch are reported as high as 69°C in flowing springs (Fiero, 1968) and 158°C in a water well drilled in the spring (Rush and Everett, 1964). At least two springs are present and two or more wells have been drilled at the site of the springs in Sec. 28, Tl8N, R50E. The water is used for stock watering. Mariner and others (1974) reported an estimated reservoir temperature of about 73°C from a Na-K-Ca geothermometer. This estimated reservoir temperature is near the reported surface spring temperature. Also, two wells of the Bartholomae Corp. in Secs. 18,30, T18N, R51E about 6 km northeast of Klobe Hot Springs have water temperatures of 22 and 23°C. These slightly anomalous temperatures may indicate a large area of thermal groundwater in this portion of Antelope Valley.