NSS 75th Anniversary Convention

Unnamed Hot Spring Near Trego

Coordinates:   40.7667, -119.1167
Water temperature:   184.1°F


Hot springs about 2 km northeast of the railroad siding of Trego (Sec. 31 T34N, R26E) are located along the railroad tracks and have a reported temperature of 86°C (Mariner and others, 1974; Grose and Keller, 1975b). The spring has been called Butte Hot Spring or Trego Hot Spring, and is clearly visible on airborne thermal infrared (Grose and Keller, 1975b). Various chemical geothermometers indicate a thermal reservoir temperature of 120-128°C (Mariner and others, 1974; Grose and Keller, 1975b). Warm water wells are located in the vicinity of Garrett Ranch (Sec. 10, T33N, R25E) about 5 km southwest of Trego Hot Springs and 3 km southwest of Trego siding. These wells have temperatures of up to 52°C (Sinclair, 1963a). Coyote Spring (Black Rock) to the north of the ranch about 2 km has a temperature of 22°C, according to Grose and Keller (1975b), although Sinclair (1963a) reported a temperature of 16°C. Coyote Spring is dry according to the Trego 7.5-minute topographic map (1980). Trego Hot Ditch, located adjacent to the hot springs, reportedly has a temperature of 31.1°C and is used for bathing (Williams, 1996, p. 20-21). The springs at the Trego area are associated with a fault along the edge of the Black Rock Desert which connects with a long fault zone along the west side of the Black Rock Range (L. T. Grose, written commun., 1977). The geology of Trego Hot Springs is discussed by Davis (1983).

Water Chemistry:
Measurements   Composition
milligrams per liter
Sample date:
Sodium (Na):
Potassium (K):
Lab-test pH:
Calcium (Ca):
Total dissolved solids:
Magnesium (Mg):
Iron (Fe):
Strontium (Sr):
Lithium (Li):
Boron (B):
Silica (SiO2):
Bicarbonate (HCO3):
Sulfate (SO4):
Chloride (Cl):
Fluoride (F):

Additional Resources

Data for this listing was provided by the Nevada Bureau of Mines and Geology.

Although these data have been processed successfully on the computer system at the Nevada Bureau of Mines and Geology, no warranty expressed or implied is made regarding the accuracy or utility of the data on any system or for general or scientific purposes, nor shall the act of distribution constitute any such warranty. This disclaimer applies both to individual use of the data and aggregate use with other data. It is strongly recommended that these data be directly acquired from the Nevada Bureau of Mines and Geology. It is also strongly recommended that careful attention be paid to the contents of the metadata file associated with the data. The Nevada Bureau of Mines and Geology shall not be held liable for improper use of the data described and/or contained herein. By using this data you hereby agree to these conditions.