The Farmers Mud Watershed (HUC 11130201) covers an area of approximately 121 square miles in southwestern Wisconsin. The watershed is characterized by rolling hills and valleys, and the primary land uses are agriculture and forested areas. The hydrology of the watershed is dominated by surface water, with several small streams and springs feeding into the Farmers Mud River. The watershed receives an average of 35-40 inches of precipitation per year, with the majority falling as snow during the winter months. The snowpack can accumulate to several feet in some areas, which can lead to flooding during the spring thaw. The surface water quality in the watershed is generally good, with low levels of nutrients and sediment. The primary reservoir in the watershed is the Farmers Mud Reservoir, which is used for both recreation and water supply purposes. Recent climatic trends in the area have shown an increase in precipitation, particularly during the winter months, which has led to more frequent flooding events.