The Big Thompson Watershed covers approximately 540 square miles in northern Colorado. The area is characterized by steep mountain ranges that funnel water into the Big Thompson River, which is a major tributary of the South Platte River. The watershed sees high snowpack accumulation in the winter months, which contributes to the river's flow throughout the year. The surface water is of high quality and supports a diverse range of aquatic life. There are several reservoirs in the watershed that provide water for irrigation and municipal use. The area experiences a semi-arid climate, with hot summers and cold winters. In recent years, the watershed has experienced significant drought conditions, leading to decreased water availability for agricultural and urban purposes. However, efforts are ongoing to manage the water resources in a sustainable manner to ensure the long-term health of the ecosystem and the communities that depend on it.