The Sny Watershed, also known as HUC 07110004, covers approximately 1,280 square miles in west-central Illinois. It includes parts of Adams, Brown, Pike, and Schuyler counties. The area is primarily agricultural with some forested areas. The watershed includes several streams and tributaries that ultimately flow into the Illinois River. The hydrology of the Sny watershed is complex, with various factors affecting the flow patterns of streams and rivers. The area experiences significant precipitation throughout the year, which can influence surface water levels and reservoir constituents. The watershed also experiences occasional flooding, particularly during heavy rain events. Interestingly, the Sny watershed is known for its unique climatic patterns, with cooler temperatures and higher precipitation levels than other regions of Illinois. These trends may be influenced by the area's location near the Mississippi River and other geographic features. Overall, the Sny watershed is an important ecological and agricultural region in Illinois, with a complex hydrology and unique climatic patterns.