Round Mountain Gold Corp. operates a large open-pit gold mine and heap-leach gold recovery facility about 17 km southeast of Darroughs Hot Springs. Geothermal fluids (about 82°C) from shallow (approx. 300 m) wells were used in a heat exchanger to transfer heat to cyanide heap-leach solutions (Trexler and others, 1990). The wells are located in NEĽ Sec. 36, T10N,R43E, about 1.5 km southwest of the mine. The heated cyanide solutions were reported to increase gold extraction during periods of freezing or near freezing weather; additionally, the heating of solutions may enhance total gold recovery. Geothermal heating is not used at the present time (2002) at Round Mountain.