A warm spring and water well are found in Sec. 6, T24N, R53E at Siri Ranch along the west side of Diamond Valley north of Shipley Hot Springs. A small pool in the alluvium is reported (Mifflin, 1968). The reported temperatures vary from 27-31°C for the spring, while the well is 35°C. The reservoir is estimated to be the same temperature as the well (Reed and others, 1982, p. 104). Discharges reported are 22,000 and 1,100 L/min (Stearns and others, 1937; Mifflin, 1968). These springs are probably associated with the range-front fault along the Sulphur Spring Range here.