The Middle Canadian Spring Watershed (HUC 11090106) covers an area of approximately 3,830 square kilometers in central Colorado. The watershed is characterized by a mountainous terrain with elevations ranging from 2,000 to 4,000 meters above sea level. The hydrology of the watershed is complex, with snowmelt and rainfall contributing to the surface and subsurface water flow. The snowpack in the watershed is typically high and persistent, providing a critical water source during the dry summer months. The surface water is mainly composed of streams, and there are several reservoirs in the area for water storage and management. The watershed receives an average precipitation of 70-90 cm per year, with most of it falling as snow in the winter months. Interesting climatic facts include frequent spring snowstorms and occasional droughts. There has been a general trend of decreasing snowpack and earlier snowmelt in recent years, which could impact the water supply and ecosystem of the watershed.