The Middle Wabash-Little Vermilion watershed, located in western Indiana, covers approximately 2,406 square miles of land. The hydrology of the area is characterized by a mix of agricultural land use and urban development, with the Wabash River serving as the main water source. Snowpack in the area varies from year to year, with average snowfall around 20-25 inches per year. Surface water in the watershed is heavily impacted by agricultural runoff, with high levels of nutrients and sediment often present. There are several small reservoirs in the area, with constituents including water, sediment, and nutrients. Interesting climatic facts include the occurrence of tornadoes in the area, with an average of 13 per year, and increasing temperatures over the past several decades, with an average increase of 1.2 degrees Fahrenheit over the past century.