The Bear Lake Watershed (HUC 16010201) covers a total land area of 1,543 square miles in southeastern Idaho and northeastern Utah. The snowpack in this region is significant, with an average of 130 inches of snowfall annually. The hydrology of the area is dominated by the Bear River, which flows into Bear Lake, the largest natural freshwater lake in Utah. The lake is an important source of irrigation water for the surrounding agricultural community. However, water quality is a concern as the lake is eutrophic, with elevated levels of nutrients and algae growth. The reservoir also contains high levels of mercury due to mining activities in the area. Climate trends indicate a warming and drying trend, leading to decreased snowpack and earlier snowmelt, which may have long-term impacts on the hydrology and ecology of the region.