The Palouse Watershed (HUC 17060108) covers an area of approximately 4,600 square miles in eastern Washington and north central Idaho. The hydrology of the watershed is characterized by a series of small streams and tributaries that converge to create the Palouse River, which eventually flows into the Snake River. The region receives a significant amount of snowpack during the winter months, which serves as an important source of surface water and groundwater recharge during the spring and summer. The watershed also contains several reservoirs, including the Lower Granite Reservoir which is an important source of hydropower and irrigation water. Interesting climatic facts include the region's relatively dry and arid climate, with an average annual precipitation of around 18 inches. There has also been a noticeable trend towards increasing temperatures and decreasing snowpack in recent years, which could have significant impacts on the hydrology and ecology of the watershed.