The Clear Watershed (HUC 10090206) covers a land area of approximately 1,176 square miles in northeastern California. The hydrology of the watershed is dominated by the Pit River, which is the largest tributary of the Sacramento River. The watershed receives significant amounts of precipitation during the winter months, which contributes to the snowpack that accumulates in the higher elevations. The snowmelt in the spring and early summer is a critical source of surface water, particularly for agricultural uses. The reservoirs in the watershed, including the Shasta and Keswick reservoirs, are important for both flood control and water storage. The climate in the Clear Watershed is Mediterranean, with hot, dry summers and mild, wet winters. Recent trends suggest that the watershed is experiencing longer and more severe droughts, which have significant implications for water resources and ecosystem health.