Rizzi Ranch Hot Springs are located in SW¼ Sec. 20, T45N, R54E, Elko County. Springs are shown on the Mountain City 7.5-minute topographic map. The springs are reported to be 41ºC and discharge 76 L/min (unnamed hot spring SSE of Patsville of Mariner and others, 1974; Waring, 1965). Rizzi Ranch reservoir temperature was estimated to be 37°C/71°C, using the silica and Na-K-Ca geothermometers, respectively (Mariner and others, 1983, p. 105).