The Hocking watershed covers an area of approximately 985 square miles in southeastern Ohio. The watershed is characterized by rugged terrain and is home to the Hocking Hills region, which is known for its natural beauty and outdoor recreation opportunities. The hydrology of the watershed is dominated by the Hocking River, which flows for approximately 102 miles through the region. The watershed receives an average annual precipitation of around 40 inches, with snowfall occurring in the winter months. Surface water quality in the watershed has been impacted by agricultural and urban runoff, which has led to high levels of nutrients and sediment in the water. The watershed also contains several reservoirs, which are used for drinking water, recreation, and flood control. Climate trends in the region include increasing temperatures and more frequent extreme weather events, such as heavy rainfall and flooding.