The Pea Watershed (HUC 03140202) covers an area of approximately 418 square miles in northeastern California. The watershed is predominantly mountainous, with elevations ranging from 4,000 to 8,000 feet above sea level. The hydrology of the watershed is dominated by snowmelt, with up to 70% of annual flow occurring between April and June. The highest snowpack levels typically occur in late March, with an average peak snow water equivalent of 12 inches. Surface water is limited, with most streams drying up during the summer months. The main reservoir in the watershed is Antelope Lake, which is used for irrigation and municipal water supply. Interestingly, the watershed has experienced a trend of declining snowpack levels in recent years, likely due to changes in climate patterns. Average annual precipitation in the watershed is around 25 inches, with the majority falling as snow.