The Spring-Steptoe Valleys Watershed (HUC 16060008) covers an area of approximately 1,635 square miles in Nevada. The hydrology of the area is characterized by a semi-arid climate with low precipitation levels and high evaporation rates. The snowpack in the watershed is generally low, but any snow that accumulates can contribute to surface water during the spring melt. Surface water in the area is limited, with most streams flowing only intermittently. The watershed does not have any major reservoirs, although there are a few small impoundments for irrigation purposes. Interesting climatic facts include the fact that the area experiences hot summers and cold winters, with temperatures ranging from below freezing to over 100 degrees Fahrenheit. There has been a trend of increasing temperatures in recent decades, which could have significant impacts on water availability and quality in the future.