The Upper Verde Watershed (HUC 15060202) covers approximately 1,441 square miles in central Arizona. The hydrology of the watershed is characterized by steep terrain, which contributes to high streamflow during precipitation events. Snowpack in the watershed is sparse, with most precipitation falling as rain. Surface water in the watershed includes the Verde River, which provides a critical source of water for both human and ecological needs. Reservoirs in the watershed include Horseshoe Lake and Bartlett Lake, which are used for water storage, recreation, and wildlife habitat. Interesting climatic trends in the watershed include increased temperatures and decreased precipitation, which may have significant impacts on water availability and ecosystem health in the future.