Warm springs (40-42°C) in Little Fish Lake Valley are located in Sec. 7, T 11N, R49E and Sec. 14, T10N, R49E near the lowest parts of the valley. They rise through alluvium which probably overlies Paleozoic limestone at depth. Fiero (1968) reported that a large number of generally north-trending faults are present in the surrounding mountains as well as within the valley alluvium, and it seems likely that these warm springs rise along a high permeability zone created by faulting. They are undeveloped but are used by stock.