The Clearwater Watershed covers an area of 4,625 square miles and is located in the state of Idaho. The watershed is characterized by mountainous terrain and diverse ecosystems, including forests, meadows, and wetlands. The hydrology of the watershed is dominated by the Clearwater River and its tributaries, which provide important habitats for fish and other aquatic species. The snowpack in the watershed is variable, with higher elevations receiving more snowfall than lower elevations. Surface water quality in the watershed is generally good, although some streams are impacted by agricultural and urban runoff. Reservoirs in the watershed are used for hydropower generation, flood control, and recreation. The climate in the watershed is characterized by cold winters and warm summers, with precipitation occurring year-round. Trends indicate that the watershed is experiencing earlier snowmelt and warmer temperatures, which may have implications for water availability and aquatic habitats in the future.