The Buffalo Watershed (HUC 09020106) covers approximately 2,700 square miles in southeastern Wyoming and northeastern Colorado. The headwaters of the watershed are in the Medicine Bow Mountains, and it flows eastward into the South Platte River. The hydrology of the Buffalo Watershed is dominated by snowmelt, with the majority of annual streamflow occurring from April to June. The watershed receives an average of 60 inches of snowfall each year, and snowpack can accumulate up to 10 feet in the high elevations. Surface water in the watershed is primarily used for irrigation, with the two largest reservoirs being the Wheatland Reservoir and the Gray Reef Reservoir. The reservoirs also provide important recreational opportunities for fishing and boating. Climatically, the Buffalo Watershed experiences significant temperature fluctuations throughout the year, with average temperatures ranging from 12°F in January to 65°F in July. The region is also prone to severe weather events, including tornadoes and thunderstorms. In recent years, the watershed has seen a trend of increasing temperatures and decreasing precipitation, which could have significant impacts on water resources in the future.