The Clinton Watershed (HUC 04090003) covers an area of approximately 1,140 square miles in Montana and Wyoming. The watershed is characterized by its high elevation, rugged terrain, and abundant snowpack. The hydrology of the Clinton Watershed is heavily influenced by snowmelt, which accounts for a significant portion of the surface water flow in the area. The watershed contains several large reservoirs, including Clark Canyon Reservoir and Lima Reservoir, which are used for irrigation and recreational purposes. The watershed also supports a variety of fish species, including trout and grayling. In recent years, the area has experienced some interesting climatic trends, including an increase in average temperatures and changes in precipitation patterns. These changes have had implications for the local ecosystem and water management practices.