The Belt Watershed covers 836 square miles in north-central Montana and drains into the Missouri River. The hydrology of the area is characterized by intermittent streams that flow through valleys and foothills. Snowpack is a critical component of the watershed's hydrologic cycle, as snowmelt in the spring recharges groundwater and sustains stream flows through the summer months. Surface water quality in the area is influenced by agricultural and urban development, with high levels of sediment, nutrients, and bacteria often present in streams. The watershed includes several reservoirs that provide water for irrigation and municipal use. Interesting climatic facts in the area include a relatively short growing season and frequent droughts. Trends in the watershed include increased agricultural irrigation and development, which can impact both surface and groundwater resources. Ongoing monitoring and management efforts aim to balance these competing demands on the watershed's resources.